Example #1
0
SEXP readDataPorStream(SEXP porStream, SEXP what, SEXP s_n, SEXP s_types){
#ifdef DEBUG
  Rprintf("\n############################");
  Rprintf("\n#readDataPorStream");
  Rprintf("\n############################");
#endif
  porStreamBuf *b = get_porStreamBuf(porStream);
  int n = asInteger(s_n);

#ifdef DEBUG
  Rprintf("\nRequired number of cases: %d",n);
  Rprintf("\nBuffer contents: |%s|",b->buf);
  Rprintf("\nLine: %d",b->line);
  Rprintf("\nPosition: %d",b->pos);
  Rprintf("\nBuffer remainder: %s",b->buf + b->pos);
#endif
  PROTECT(s_types = coerceVector(s_types,INTSXP));
  int nvar = length(s_types);
  int *types = INTEGER(s_types);

  SEXP x, y, data;
  char *charbuf;
  int charbuflen = 0;
  PROTECT(data = allocVector(VECSXP,nvar));
  int i,j;
  for(j = 0; j < nvar; j++){
    if(types[j]==0)
      SET_VECTOR_ELT(data,j,allocVector(REALSXP,n));
    else {
      SET_VECTOR_ELT(data,j,allocVector(STRSXP,n));
      if(types[j] > charbuflen) charbuflen = types[j];
      }
  }
  charbuf = R_alloc(charbuflen+1,sizeof(char));

#ifdef DEBUG
//   PrintValue(data);
#endif

  for(i = 0; i < n; i++){
    if(atEndPorStream(b) || (b->pos < 80 && b->buf[b->pos] == 'Z')){
#ifdef DEBUG
      Rprintf("\nReached end of cases at i=%d",i);
#endif
      int new_length = i;
      for(j = 0; j < nvar; j++){
        x = VECTOR_ELT(data,j);
        SET_VECTOR_ELT(data,j,lengthgets(x,new_length));
      }
      n = new_length;
      break;
    }
#ifdef DEBUG
    Rprintf("\nCase number: %d\n",i);
#endif
    for(j = 0; j < nvar; j++){
      if(atEndPorStream(b)) {
          printPorStreamBuf(b);
          warning("\nPremature end of data");
          break;
      }
#ifdef DEBUG
      PrintValue(VECTOR_ELT(data,j));
#endif
      if(types[j]==0) REAL(VECTOR_ELT(data,j))[i] = readDoublePorStream1(b);
      else SET_STRING_ELT(VECTOR_ELT(data,j), i,
                          mkChar(readCHARPorStream(b,charbuf,types[j])));
#ifdef DEBUG
      if(i<3 && types[j]>0)
      PrintValue(STRING_ELT(VECTOR_ELT(data,j),i));
#endif
      }
    }
  for(j = 0; j < nvar; j++){
    x = VECTOR_ELT(what,j);
    y = VECTOR_ELT(data,j);
    copyMostAttrib(x,y);
  }
  UNPROTECT(2);
  return data;
}
Example #2
0
SEXP pathSearch(SEXP Rx, SEXP Ry, SEXP Romega, SEXP Rlambda, SEXP Rkappa,
                SEXP Rtheta, SEXP Rn_lambda, SEXP Rn_theta,
                SEXP Reps, SEXP Rmax, SEXP Rinmax, SEXP Rpenalty, SEXP Rinit)
{
  const char *penalty;
  int  i, j, l, n, p, max, iter[1], n_lambda, n_theta, inmax;
  double eps;
  double *lambda, *y, *x, *init, *in, kappa, *theta, *omega;
  void cdfit(), free_vec();
  SEXP betahat,  betatild, Riter, return_list;
  p = Rf_ncols(Rx);
  n = Rf_nrows(Rx);
  Rx = coerceVector(Rx, REALSXP);
  Ry = coerceVector(Ry, REALSXP);
  Romega = coerceVector(Romega, REALSXP);
  Rlambda = coerceVector(Rlambda, REALSXP);
  Rkappa = coerceVector(Rkappa, REALSXP);
  Rtheta = coerceVector(Rtheta, REALSXP);
  Rn_lambda = coerceVector(Rn_lambda, INTSXP);
  Rn_theta = coerceVector(Rn_theta, INTSXP);
  Reps = coerceVector(Reps, REALSXP);
  Rinit = coerceVector(Rinit, REALSXP);
  Rmax = coerceVector(Rmax, INTSXP);
  Rinmax = coerceVector(Rinmax, INTSXP);


  lambda = REAL(Rlambda);
  kappa = REAL(Rkappa)[0];
  theta = REAL(Rtheta);
  penalty = CHAR(STRING_ELT(Rpenalty, 0));
  n_lambda = INTEGER(Rn_lambda)[0];
  n_theta = INTEGER(Rn_theta)[0];
  eps = REAL(Reps)[0];
  max = INTEGER(Rmax)[0];
  inmax = INTEGER(Rinmax)[0];
  x = REAL(Rx);
  y = REAL(Ry);
  omega = REAL(Romega);
  in = REAL(Rinit);
  init = vector(p);
  for (j = 0; j < p; j++) init[j] = in[j];
  PROTECT(betahat = Rf_allocMatrix(REALSXP, p, n_lambda * n_theta));
  PROTECT(betatild = Rf_allocMatrix(REALSXP, p, n_lambda * n_theta));
  PROTECT(Riter = Rf_allocMatrix(INTSXP, n_lambda, n_theta));
  PROTECT(return_list = Rf_allocVector(VECSXP, 6));
  /*LASSO path along lambda*/
  for (i = 0; i < n_lambda; i++){
    for (l = 0; l < n_theta; l++)
    {
      cdfit(x, y, omega, init, lambda[i], 0.0, theta[l], "LASSO", eps, max,
      inmax, n, p, iter);
      for (j = 0; j < p; j++)
        REAL(betahat)[(i + l * n_lambda) * p + j] = init[j];
      INTEGER(Riter)[i + l * n_lambda] = iter[0];
    }}
  SET_VECTOR_ELT(return_list, 0, betahat);
  /*MCP path along kappa with n_lambda interim points*/
  if (strcmp(penalty, "MCP") == 0)
  {
    for (i = 0; i < n_lambda; i++)
    {
      for (l = 0; l < n_theta; l++)
      {
        for (j = 0; j < p; j++) init[j] = REAL(betahat)[(i + l * n_lambda) * p + j];
        cdfit(x, y, omega, init, lambda[i], kappa, theta[l], "MCP", eps, max,
        inmax, n, p, iter);
        for (j = 0; j < p; j++)
          REAL(betatild)[(i + l * n_lambda) * p + j] = init[j];
        INTEGER(Riter)[i + l * n_lambda] = iter[0];
      }
    }
  }
  SET_VECTOR_ELT(return_list, 1, betatild);
  SET_VECTOR_ELT(return_list, 2, Riter);
  SET_VECTOR_ELT(return_list, 3, Rlambda);
  SET_VECTOR_ELT(return_list, 4, Rkappa);
  SET_VECTOR_ELT(return_list, 5, Rtheta);
  UNPROTECT(4);
  free_vector(init);
  return(return_list);
}
SEXP SP_PREFIX(Polygons_c)(SEXP pls, SEXP ID) {

    SEXP ans, labpt, Area, plotOrder, crds, pl, n, hole;
    int nps, i, pc=0, sumholes;
    double *areas, *areaseps, fuzz;
    int *po, *holes;
    SEXP valid;

    nps = length(pls);
    fuzz = R_pow(DOUBLE_EPS, (2.0/3.0));
    areas = (double *) R_alloc((size_t) nps, sizeof(double));
    areaseps = (double *) R_alloc((size_t) nps, sizeof(double));
    holes = (int *) R_alloc((size_t) nps, sizeof(int));

    for (i=0, sumholes=0; i<nps; i++) {
        areas[i] = NUMERIC_POINTER(GET_SLOT(VECTOR_ELT(pls, i),
            install("area")))[0]; 
        holes[i] = LOGICAL_POINTER(GET_SLOT(VECTOR_ELT(pls, i),
            install("hole")))[0];
         areaseps[i] = holes[i] ? areas[i] + fuzz : areas[i];
         sumholes += holes[i];
    }
    po = (int *) R_alloc((size_t) nps, sizeof(int));
    if (nps > 1) {
        for (i=0; i<nps; i++) po[i] = i + R_OFFSET;
        revsort(areaseps, po, nps);
    } else {
        po[0] = 1;
    }

    if (sumholes == nps) {
        crds = GET_SLOT(VECTOR_ELT(pls, (po[0] - R_OFFSET)), install("coords"));
        PROTECT(n = NEW_INTEGER(1)); pc++;
        INTEGER_POINTER(n)[0] = INTEGER_POINTER(getAttrib(crds,
            R_DimSymbol))[0];
        PROTECT(hole = NEW_LOGICAL(1)); pc++;
        LOGICAL_POINTER(hole)[0] = FALSE;
        pl = SP_PREFIX(Polygon_c)(crds, n, hole);
/* bug 100417 Patrick Giraudoux */
        holes[po[0] - R_OFFSET] = LOGICAL_POINTER(hole)[0];
        SET_VECTOR_ELT(pls, (po[0] - R_OFFSET), pl);
    }

    PROTECT(ans = NEW_OBJECT(MAKE_CLASS("Polygons"))); pc++;
    SET_SLOT(ans, install("Polygons"), pls);
    SET_SLOT(ans, install("ID"), ID);

    PROTECT(Area = NEW_NUMERIC(1)); pc++;
    NUMERIC_POINTER(Area)[0] = 0.0;
    for (i=0; i<nps; i++) {
        NUMERIC_POINTER(Area)[0] += holes[i] ? 0.0 : fabs(areas[i]);
    }
    SET_SLOT(ans, install("area"), Area);

    PROTECT(plotOrder = NEW_INTEGER(nps)); pc++;
    for (i=0; i<nps; i++) INTEGER_POINTER(plotOrder)[i] = po[i];
    SET_SLOT(ans, install("plotOrder"), plotOrder);

    PROTECT(labpt = NEW_NUMERIC(2)); pc++;
    NUMERIC_POINTER(labpt)[0] = NUMERIC_POINTER(GET_SLOT(VECTOR_ELT(pls,
        (po[0]-1)), install("labpt")))[0];
    NUMERIC_POINTER(labpt)[1] = NUMERIC_POINTER(GET_SLOT(VECTOR_ELT(pls,
        (po[0]-1)), install("labpt")))[1];
    SET_SLOT(ans, install("labpt"), labpt);

    PROTECT(valid = SP_PREFIX(Polygons_validate_c)(ans)); pc++;
    if (!isLogical(valid)) {
        UNPROTECT(pc);
        if (isString(valid)) error(CHAR(STRING_ELT(valid, 0)));
        else error("invalid Polygons object");
    }

    UNPROTECT(pc);
    return(ans);
}
Example #4
0
SEXP findmzROI(SEXP mz, SEXP intensity, SEXP scanindex, SEXP mzrange, SEXP scanrange, SEXP lastscan, SEXP dev, SEXP minEntries, SEXP prefilter, SEXP noise) {
  double *pmz, *pintensity, mzrangeFrom,mzrangeTo;
  int i,*pscanindex, scanrangeFrom, scanrangeTo, ctScan, nmz, lastScan, inoise;
  int scerr = 0;  // count of peak insertion errors, due to missing/bad centroidisation
  int perc, lp = -1;
  SEXP peaklist,entrylist,list_names,vmz,vmzmin,vmzmax,vscmin,vscmax,vlength,vintensity;

  pmz = REAL(mz);
  nmz = GET_LENGTH(mz);
  pintensity = REAL(intensity);
  pscanindex = INTEGER(scanindex);
  lastScan = INTEGER(lastscan)[0];
  inoise = INTEGER(noise)[0];

  pickOptions.dev = REAL(dev)[0];
  pickOptions.minEntries = INTEGER(minEntries)[0];
  pickOptions.minimumIntValues=INTEGER(prefilter)[0];
  pickOptions.minimumInt=INTEGER(prefilter)[1];

  mzrangeFrom = REAL(mzrange)[0];
  mzrangeTo =  REAL(mzrange)[1];
  scanrangeFrom = INTEGER(scanrange)[0];
  scanrangeTo = INTEGER(scanrange)[1];

  struct mzROIStruct * mzROI = (struct mzROIStruct *) calloc(ROI_INIT_LENGTH,  sizeof(struct mzROIStruct));
  if (mzROI == NULL)
      error("findmzROI/calloc: buffer memory could not be allocated ! (%d bytes)\n",ROI_INIT_LENGTH  * sizeof(struct mzROIStruct) );

  struct mzROIStruct * mzval = (struct mzROIStruct *) calloc(MZVAL_INIT_LENGTH,  sizeof(struct mzROIStruct));
  if (mzval == NULL)
      error("findmzROI/calloc: buffer memory could not be allocated ! (%d bytes)\n",MZVAL_INIT_LENGTH  * sizeof(struct mzROIStruct) );

  mzLength.mzvalTotal = MZVAL_INIT_LENGTH;
  mzLength.mzROITotal = ROI_INIT_LENGTH;
  mzLength.mzval = 0;
  mzLength.mzROI = 0;

  struct scanBuf * scanbuf = &scbuf;
  scanbuf->thisScan = NULL;
  scanbuf->nextScan = NULL;
  scanbuf->thisScanLength = 0;
  scanbuf->nextScanLength = 0;

  char *names[N_NAMES] = {"mz", "mzmin", "mzmax", "scmin", "scmax", "length", "intensity"};
  PROTECT(list_names = allocVector(STRSXP, N_NAMES));
  for(i = 0; i < N_NAMES; i++)
    SET_STRING_ELT(list_names, i,  mkChar(names[i]));

  Rprintf(" %% finished: ");
  for (ctScan=scanrangeFrom;ctScan<=scanrangeTo;ctScan++)
  {
     perc = (int) (ctScan* 100)/scanrangeTo;
     if ((perc % 10) == 0 && (perc != lp))
     {
       Rprintf("%d ",perc);
       lp = perc;
     }
    scanbuf=getScan(ctScan, pmz, pintensity, pscanindex,nmz,lastScan, scanbuf);

    if (scanbuf->thisScanLength > 0)
    {
        #ifdef DEBUG
         Rprintf("ScanLength %d ",scanbuf->thisScanLength);
         Rprintf("Scan Nr. %d of %d (%d %%) %d peaks -- working at %d m/z ROI's, %d ROI's completed.\n", ctScan, scanrangeTo,  (int)100.0*ctScan/scanrangeTo,scanbuf->thisScanLength,mzLength.mzval,mzLength.mzROI);
        #endif

      int p;
      double fMass,lastMass=-1;
      double fInten;

        for (p=0;p < scanbuf->thisScanLength;p++)
        {
          fMass  = scanbuf->thisScan[p].mz;
          fInten = scanbuf->thisScan[p].intensity;

          if (fMass < lastMass)
            error("m/z sort assumption violated ! (scan %d, p %d, current %2.4f (I=%2.2f), last %2.4f) \n",ctScan,p,fMass,fInten,lastMass);
          lastMass = fMass;

          if (fInten > inoise)
            mzval=insertpeak(fMass, fInten, scanbuf, ctScan, scanrangeTo, mzval, &mzLength, &pickOptions);

        }
    }
    mzROI=cleanup(ctScan,mzROI,mzval,&mzLength,&scerr,&pickOptions);
    R_FlushConsole();
  } //for ctScan

  mzROI=cleanup(ctScan+1,mzROI,mzval,&mzLength,&scerr,&pickOptions);

  PROTECT(peaklist = allocVector(VECSXP, mzLength.mzROI));
  int total = 0;
  for (i=0;i<mzLength.mzROI;i++) {
      PROTECT(entrylist = allocVector(VECSXP, N_NAMES));

      PROTECT(vmz = NEW_NUMERIC(1));
      PROTECT(vmzmin = NEW_NUMERIC(1));
      PROTECT(vmzmax = NEW_NUMERIC(1));

      PROTECT(vscmin = NEW_INTEGER(1));
      PROTECT(vscmax = NEW_INTEGER(1));
      PROTECT(vlength = NEW_INTEGER(1));
      PROTECT(vintensity = NEW_INTEGER(1));

      NUMERIC_POINTER(vmz)[0]  = mzROI[i].mz;
      NUMERIC_POINTER(vmzmin)[0] = mzROI[i].mzmin;
      NUMERIC_POINTER(vmzmax)[0] = mzROI[i].mzmax;

      INTEGER_POINTER(vscmin)[0] = mzROI[i].scmin;
      INTEGER_POINTER(vscmax)[0] = mzROI[i].scmax;
      INTEGER_POINTER(vlength)[0] = mzROI[i].length;
      INTEGER_POINTER(vintensity)[0] = mzROI[i].intensity;

      SET_VECTOR_ELT(entrylist, 0, vmz);
      SET_VECTOR_ELT(entrylist, 1, vmzmin);
      SET_VECTOR_ELT(entrylist, 2, vmzmax);
      SET_VECTOR_ELT(entrylist, 3, vscmin);
      SET_VECTOR_ELT(entrylist, 4, vscmax);
      SET_VECTOR_ELT(entrylist, 5, vlength);
      SET_VECTOR_ELT(entrylist, 6, vintensity);

      setAttrib(entrylist, R_NamesSymbol, list_names); //attaching the vector names

      SET_VECTOR_ELT(peaklist, i, entrylist);
      UNPROTECT(N_NAMES + 1); //entrylist + values
      total++;
  }

  if (scerr > 0) Rprintf("Warning: There were %d peak data insertion problems. \n Please try lowering the \"ppm\" parameter.\n", scerr);

  Rprintf("\n %d m/z ROI's.\n", total);

  UNPROTECT(2); // peaklist,list_names

 // free(ptpeakbuf);

  if (scanbuf->thisScan != NULL)
    free(scanbuf->thisScan);
  if (scanbuf->thisScan != NULL)
    free(scanbuf->nextScan);

  free(mzval);
  free(mzROI);

  return(peaklist);
}
Example #5
0
File: hbin.c Project: nikko/hexbin
SEXP hbin(SEXP x, SEXP y, SEXP swts, SEXP shape, 
          SEXP size, SEXP rx, SEXP ry, SEXP bnd, SEXP n,
	  SEXP doCellid){
/*	Copyright 1991
	Version Date:	September 16, 1994
	Programmer:	Dan Carr, Conversion to C, triangulation, 
                        and Rapi Nicholas Lewin-Koh (2010)
	Indexing:	Left to right, bottom to top
			bnd[0] rows, bnd[2] columns
        Input Vars:
	   x,y       the values of x and y
           xcm,ycm   vectors for the center of mass of the returned hexagons
           shape     the shape parameter for the hexagons
           cell
           cnt 
	Output:	     
                     cell ids for non empty cells, revised bnd(1)
                     optionally also return cellid(1:n), and wcnt
      Copyright (2004) Nicholas Lewin-Koh and Martin Maechler */


  int nc, nn;
  int i, i1, i2, iinc;
  int j1, j2, jinc;
  int L, ll, lmax, lat, tcell;
  double c1, c2, con1, con2, dist1, fsize;
  double sx, sy, xmin, ymin, xr, yr;
  uint keepID=0, doWeights=0;
  int prcnt=0;
  SEXP ans;
  SEXP cnt, cell, wcnt, cellid,  xcm,  ycm;
	
        

	if(LOGICAL(doCellid)[0]>0) keepID = 1;
	if(length(swts) > 0 || swts != R_NilValue) doWeights = 1;
       /*_______Alloc and protect the necessary result vectors, then set to 0_____________*/
        lmax=INTEGER(bnd)[0]*INTEGER(bnd)[1];
    
	PROTECT(cnt = allocVector(INTSXP, lmax));
        prcnt++;
	PROTECT(cell = allocVector(INTSXP, lmax));
        prcnt++;
	PROTECT(xcm = allocVector(REALSXP, lmax));
        prcnt++;
	PROTECT(ycm = allocVector(REALSXP, lmax));
        prcnt++;	 
	if(keepID > 0) PROTECT(cellid = allocVector(INTSXP, INTEGER(n)[0]));
	else PROTECT(cellid = allocVector(NILSXP, 1));
	prcnt++;
	  
	if(doWeights > 0)PROTECT(wcnt = allocVector(REALSXP, lmax));
	else PROTECT(wcnt = allocVector(NILSXP, 1));
	prcnt++;	


	memset(INTEGER(cell),0,lmax*sizeof(int));
	memset(INTEGER(cnt),0,lmax*sizeof(int));
        memset(REAL(xcm),0,lmax*sizeof(double));
        memset(REAL(ycm),0,lmax*sizeof(double));

	if(doWeights>0) memset(REAL(wcnt),0,lmax*sizeof(double));

       /*_______Constants for scaling the data_____________________________*/
	fsize=INTEGER(size)[0];
        nn=INTEGER(n)[0];
	xmin = REAL(rx)[0];
	ymin = REAL(ry)[0];
	xr = REAL(rx)[1]-xmin;
	yr = REAL(ry)[1]-ymin;
        
	c1 = fsize/xr;
	c2 = (fsize*REAL(shape)[0])/(yr*sqrt(3.0));

	jinc= INTEGER(bnd)[1];
	lat=jinc+1;
	iinc= 2*jinc;
	con1 = 0.25;
	con2 = 1.0/3.0;
        
	/*_______Binning loop______________________________________________*/
	
	for(i=0; i<nn; i++){
	  sx = c1 * (REAL(x)[i] - xmin);
	  sy = c2 * (REAL(y)[i] - ymin);
	  j1 = sx+.5;
	  i1 = sy+.5;
	  dist1 = (sx-j1)*(sx-j1)+ 3.0*(sy-i1)*(sy-i1);
	  /* need floor in C for this, same effect as trunc*/
	  if(dist1 < con1) L = i1*iinc + j1 + 1;
	  else if(dist1 > con2) L = floor(sy)*iinc + floor(sx) + lat;
	  else{
	    j2 = sx;
	    i2 = sy;
	    if(dist1 <= ((sx - j2 - 0.5)*(sx - j2 - 0.5)) + 3.0*((sy - i2 - 0.5)*(sy - i2 - 0.5))) L = i1*iinc + j1 + 1;
	    else L=i2*iinc+ j2+lat;
	  }
	  ll=L-1;
	  INTEGER(cnt)[ll]++;
	  if(doWeights > 0) REAL(wcnt)[ll] = REAL(wcnt)[ll] + REAL(swts)[i];
	  if (keepID > 0) INTEGER(cellid)[i] = L;
	  REAL(xcm)[ll] = REAL(xcm)[ll] + (REAL(x)[i]-REAL(xcm)[ll])/INTEGER(cnt)[ll];
	  REAL(ycm)[ll] = REAL(ycm)[ll]+ (REAL(y)[i]-REAL(ycm)[ll])/INTEGER(cnt)[ll];
	}

/*_______Compression of output________________________________________*/

        nc=-1;
        for(L=0;L<lmax;L++){
	  if(INTEGER(cnt)[L] > 0){
	    nc=nc+1;
	    INTEGER(cell)[nc]=L+1;
	    INTEGER(cnt)[nc]=INTEGER(cnt)[L];	    
	    REAL(xcm)[nc]=REAL(xcm)[L];
	    REAL(ycm)[nc]=REAL(ycm)[L];
	  }
	}

       INTEGER(n)[0]=nc+1;
       INTEGER(bnd)[0]=(INTEGER(cell)[nc]-1)/INTEGER(bnd)[1]+1;
       /* Output constructor */
       PROTECT(ans = allocVector(VECSXP, 6));
       prcnt++;
       SET_VECTOR_ELT(ans, 0, n);
       SET_VECTOR_ELT(ans, 1, cell);
       SET_VECTOR_ELT(ans, 2, cnt);
       SET_VECTOR_ELT(ans, 3, wcnt);
       SET_VECTOR_ELT(ans, 4, xcm);
       SET_VECTOR_ELT(ans, 5, ycm);       

       UNPROTECT(prcnt);
       return(ans);
}
Example #6
0
File: seq.c Project: kalibera/rexp
/* rep_len(x, len), also used for rep.int() with scalar 'times' */
static SEXP rep3(SEXP s, R_xlen_t ns, R_xlen_t na)
{
    R_xlen_t i, j;
    SEXP a;

    PROTECT(a = allocVector(TYPEOF(s), na));

    // i % ns is slow, especially with long R_xlen_t
    switch (TYPEOF(s)) {
    case LGLSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    LOGICAL(a)[i++] = LOGICAL(s)[j++];
	}
	break;
    case INTSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    INTEGER(a)[i++] = INTEGER(s)[j++];
	}
	break;
    case REALSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    REAL(a)[i++] = REAL(s)[j++];
	}
	break;
    case CPLXSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    COMPLEX(a)[i++] = COMPLEX(s)[j++];
	}
	break;
    case RAWSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    RAW(a)[i++] = RAW(s)[j++];
	}
	break;
    case STRSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    SET_STRING_ELT(a, i++, STRING_ELT(s, j++));
	}
	break;
    case VECSXP:
    case EXPRSXP:
	for (i = 0, j = 0; i < na;) {
//	    if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	    if (j >= ns) j = 0;
	    SET_VECTOR_ELT(a, i++, lazy_duplicate(VECTOR_ELT(s, j++)));
	}
	break;
    default:
	UNIMPLEMENTED_TYPE("rep3", s);
    }
    UNPROTECT(1);
    return a;
}
void countMatrixColumns(SEXP x, const column_type* columnTypes, SEXP dropPatternExpr, bool createDropPattern, size_t* result)
{
  size_t numColumns = (size_t) rc_getLength(x);
  bool dropColumn;
  for (size_t i = 0; i < numColumns; ++i) {
    SEXP col = VECTOR_ELT(x, i);
    
    switch (columnTypes[i]) {
      case REAL_VECTOR:
      case INTEGER_VECTOR:
      case LOGICAL_VECTOR:
      {
        if (dropPatternExpr != R_NilValue) {
          if (createDropPattern) {
            dropColumn = numericVectorIsConstant(col, columnTypes[i]);
            
            SET_VECTOR_ELT(dropPatternExpr, i, rc_newLogical(1));
            LOGICAL(VECTOR_ELT(dropPatternExpr, i))[0] = dropColumn ? TRUE : FALSE;
          } else {
            dropColumn = LOGICAL(VECTOR_ELT(dropPatternExpr, i))[0];
          }
          if (!dropColumn) *result += 1;
        } else {
          *result += 1;
        }
      }
      break;
      
      case REAL_MATRIX:
      {
        double* colData = REAL(col);
        int* dims = INTEGER(rc_getDims(col));
        size_t numRows = dims[0], numCols = dims[1];
        
        if (dropPatternExpr != R_NilValue) {
          if (createDropPattern) {
            SET_VECTOR_ELT(dropPatternExpr, i, rc_newLogical(numCols));
            int* dropPattern = LOGICAL(VECTOR_ELT(dropPatternExpr, i));
            
            for (size_t j = 0; j < numCols; ++j) {
              dropColumn = misc_vectorIsConstant(colData + j * numRows, numRows);
              dropPattern[j] = dropColumn;
              if (!dropColumn) *result += 1;
            }
          } else {
            int* dropPattern = LOGICAL(VECTOR_ELT(dropPatternExpr, i));
            for (size_t j = 0; j < numCols; ++j)
              if (dropPattern[j] == 0) *result += 1;
          }
        } else {
          *result += numCols;
        }
      }
      break;
      
      case INTEGER_MATRIX:
      case LOGICAL_MATRIX:
      {
        int* colData = INTEGER(col);
        int* dims = INTEGER(rc_getDims(col));
        size_t numRows = dims[0], numCols = dims[1];
        
        if (dropPatternExpr != R_NilValue) {
          if (createDropPattern) {
            SET_VECTOR_ELT(dropPatternExpr, i, rc_newLogical(numCols));
            int* dropPattern = LOGICAL(VECTOR_ELT(dropPatternExpr, i));
          
            for (size_t j = 0; j < numCols; ++j) {
              dropColumn = integerVectorIsConstant(colData + j * numRows, numRows);
              dropPattern[j] = dropColumn;
              if (!dropColumn) *result += 1;
            }
          } else {
            int* dropPattern = LOGICAL(VECTOR_ELT(dropPatternExpr, i));
            for (size_t j = 0; j < numCols; ++j)
              if (dropPattern[j] == 0) *result += 1;
          }
        } else {
          *result += numCols;
        }
      }
      break;
      case FACTOR:
      {
        SEXP levelsExpr = rc_getLevels(col);
        size_t numLevels = (size_t) rc_getLength(levelsExpr);
        
        if (dropPatternExpr != R_NilValue) {
          int* factorInstanceCounts;
          if (createDropPattern) {
            SET_VECTOR_ELT(dropPatternExpr, i, rc_newInteger(numLevels));
            factorInstanceCounts = INTEGER(VECTOR_ELT(dropPatternExpr, i));
            tableFactor(col, factorInstanceCounts);
          } else {
            factorInstanceCounts = INTEGER(VECTOR_ELT(dropPatternExpr, i));
          }
          
          size_t numLevelsPerFactor = 0;
          for (size_t j = 0; j < numLevels; ++j) if (factorInstanceCounts[j] > 0) ++numLevelsPerFactor;
          
          if (numLevelsPerFactor == 2) {
            *result += 1;
          } else if (numLevelsPerFactor > 2) {
            *result += numLevelsPerFactor;
          }
        } else {
          *result += (numLevels <= 2 ? 1 : numLevels);
        }
      }
      default:
      break;
    }
  }
}
Example #8
0
SEXP TASCB_min(SEXP vect, SEXP tau, SEXP numberofSamples, SEXP sigma){
	int value_count, sigma_count;
	mgs_result mgs_res;
	quant_result q_res;
	dbl_array *vector, *vect_sorted, *s;
	dbl_matrix *H_Mat1, *H_Mat2;
	calc_V_result_tri v_res;
	final_result_tri f_res;
	SEXP result, binarized_vector, threshold1, threshold2, p_value, other_results, names;
	SEXP smoothed, zerocrossing, deriv, steps, H1, H2, index, v_vec, meanlist, smoothedX;

	value_count = length(vect);
	sigma_count = length(sigma);

	PROTECT(result = allocVector(VECSXP, 5));
	PROTECT(names = allocVector(VECSXP, 5));
	SET_VECTOR_ELT(names,0, mkChar("binarized_vector"));
	SET_VECTOR_ELT(names,1, mkChar("threshold1"));
	SET_VECTOR_ELT(names,2, mkChar("threshold2"));
	SET_VECTOR_ELT(names,3, mkChar("p_value"));
	SET_VECTOR_ELT(names,4, mkChar("other_results"));
	setAttrib(result, R_NamesSymbol, names);
	UNPROTECT(1);

	PROTECT(other_results = allocVector(VECSXP, 10));
	PROTECT(names = allocVector(VECSXP, 10));
	SET_VECTOR_ELT(names,0, mkChar("smoothed"));
	SET_VECTOR_ELT(names,1, mkChar("zerocrossing"));
	SET_VECTOR_ELT(names,2, mkChar("deriv"));
	SET_VECTOR_ELT(names,3, mkChar("steps"));
	SET_VECTOR_ELT(names,4, mkChar("H_Mat1"));
	SET_VECTOR_ELT(names,5, mkChar("H_Mat2"));
	SET_VECTOR_ELT(names,6, mkChar("index"));
	SET_VECTOR_ELT(names,7, mkChar("v_vec"));
	SET_VECTOR_ELT(names,8, mkChar("smoothedX"));
	SET_VECTOR_ELT(names,9, mkChar("meanlist"));
	setAttrib(other_results, R_NamesSymbol, names);
	UNPROTECT(1);

	PROTECT(smoothed = allocMatrix(REALSXP, value_count - 1, sigma_count));
	PROTECT(zerocrossing = allocMatrix(INTSXP, (int)ceil((double)value_count / 2.0), sigma_count));
	PROTECT(deriv = allocVector(REALSXP, value_count - 1));
	
	mgs_res.smoothed = init_dbl_matrix(REAL(smoothed), sigma_count, value_count - 1, 0);
	mgs_res.zerocrossing = init_int_matrix(INTEGER(zerocrossing), sigma_count, (int)ceil((double)value_count / 2.0), 0);
	mgs_res.deriv = init_dbl_array(REAL(deriv), value_count - 1, 0);
	vector = init_dbl_array(REAL(vect), value_count, 1);
	vect_sorted = init_dbl_array(0, value_count, 0);
	s = init_dbl_array(REAL(sigma), sigma_count, 1);
	b = init_dbl_matrix(0, sigma_count, mgs_res.deriv->length, 0);
	b_returned = init_int_matrix(0, sigma_count, mgs_res.deriv->length, 0);

	memcpy(vect_sorted->values, REAL(vect), vect_sorted->length * sizeof(double));
	qsort(vect_sorted->values, vect_sorted->length, sizeof(double), comp);

	mgs(&mgs_res, vect_sorted, s);

	q_res.steps = init_int_matrix(0, sigma_count, (int)ceil((double)value_count / 2.0), 0);
	q_res.index = init_int_array(0, sigma_count, 0);
	q_res.greatest_index_ind = 0;
	q_res.greatest_steps_col = 0;
	q_res.greatest_steps_row = 0;

	getQuantizations(&q_res, &mgs_res);
	
	PROTECT(steps = allocMatrix(INTSXP, q_res.greatest_steps_col, q_res.greatest_steps_row));
	PROTECT(H1 = allocMatrix(REALSXP, q_res.greatest_steps_col, q_res.greatest_steps_row));
	PROTECT(H2 = allocMatrix(REALSXP, q_res.greatest_steps_col, q_res.greatest_steps_row));
	PROTECT(index = allocVector(INTSXP, q_res.greatest_index_ind));

	cut_int_matrix(q_res.steps, INTEGER(steps), 0, q_res.greatest_steps_row - 1, 0, q_res.greatest_steps_col - 1);
	cut_int_array(q_res.index, INTEGER(index), 0, q_res.greatest_index_ind - 1);
	H_Mat1 = init_dbl_matrix(REAL(H1), q_res.greatest_steps_row, q_res.greatest_steps_col, 0);
	H_Mat2 = init_dbl_matrix(REAL(H2), q_res.greatest_steps_row, q_res.greatest_steps_col, 0);

	PROTECT(v_vec = allocMatrix(INTSXP, q_res.index->length, 2));
	PROTECT(smoothedX = allocMatrix(REALSXP, mgs_res.smoothed->cols + 1, q_res.index->length));
	PROTECT(meanlist = allocMatrix(REALSXP, vect_sorted->length, q_res.index->length + 1));
	v_res.v = init_int_matrix(INTEGER(v_vec), q_res.index->length, 2, 0);
	
	v_res.meanlist = init_dbl_matrix(REAL(meanlist), q_res.index->length + 1, vect_sorted->length, 0);
	v_res.smoothedX = init_dbl_matrix(REAL(smoothedX), q_res.index->length, mgs_res.smoothed->cols + 1, 0);

	calc_V_Scalespace_tri_min(&v_res, &mgs_res, &q_res, H_Mat1, H_Mat2, vect_sorted);

	PROTECT(binarized_vector = allocVector(INTSXP, value_count));
	PROTECT(threshold1 = allocVector(REALSXP, 1));
	PROTECT(threshold2 = allocVector(REALSXP, 1));
	PROTECT(p_value = allocVector(REALSXP, 1));

	f_res.binarized_vector = init_int_array(INTEGER(binarized_vector), value_count, 0);
	f_res.p = REAL(p_value);
	f_res.threshold1 = REAL(threshold1);
	f_res.threshold2 = REAL(threshold2);

	calc_final_results_tri_min(&f_res, v_res.v, vector, vect_sorted, *REAL(tau), *INTEGER(numberofSamples));

	SET_VECTOR_ELT(other_results, 0, smoothed);
	SET_VECTOR_ELT(other_results, 1, zerocrossing);
	SET_VECTOR_ELT(other_results, 2, deriv);
	SET_VECTOR_ELT(other_results, 3, steps);
	SET_VECTOR_ELT(other_results, 4, H1);
	SET_VECTOR_ELT(other_results, 5, H2);
	SET_VECTOR_ELT(other_results, 6, index);
	SET_VECTOR_ELT(other_results, 7, v_vec);
	SET_VECTOR_ELT(other_results, 8, smoothedX);
	SET_VECTOR_ELT(other_results, 9, meanlist);
	
	SET_VECTOR_ELT(result, 0, binarized_vector);
	SET_VECTOR_ELT(result, 1, threshold1);
	SET_VECTOR_ELT(result, 2, threshold2);
	SET_VECTOR_ELT(result, 3, p_value);
	SET_VECTOR_ELT(result, 4, other_results);

	destroy_dbl_matrix(mgs_res.smoothed);
	destroy_int_matrix(mgs_res.zerocrossing);
	destroy_dbl_array(mgs_res.deriv);
	destroy_dbl_array(vector);
	destroy_dbl_array(vect_sorted);
	destroy_dbl_array(s);
	destroy_dbl_matrix(b);
	destroy_int_matrix(b_returned);
	b = 0;
	b_returned = 0;
	destroy_dbl_matrix(H_Mat1);
	destroy_dbl_matrix(H_Mat2);
	destroy_int_matrix(q_res.steps);
	destroy_int_array(q_res.index);
	destroy_int_matrix(v_res.v);
	destroy_dbl_matrix(v_res.meanlist);
	destroy_dbl_matrix(v_res.smoothedX);
	destroy_int_array(f_res.binarized_vector);

	UNPROTECT(16);

	return result;
}
Example #9
0
File: elsa.c Project: rforge/elisa
SEXP elsa(SEXP v, SEXP nc, SEXP nr, SEXP nclass, SEXP rr, SEXP cc) {
  int nProtected=0;
  int c, row, col, ngb, q, nnr, nnc, nrow, ncol, cellnr, ncl, n;
  double e, w, s, xi, qq, count, a;
  
  R_len_t i, j;
  
  SEXP ans;
  
  PROTECT(ans = NEW_LIST(2));
  ++nProtected;
  
  int *xrr, *xcc;
  double *xv;
  
  nrow=INTEGER(nr)[0];
  ncol=INTEGER(nc)[0];
  ncl=INTEGER(nclass)[0];
  
  n=length(v);
  
  SET_VECTOR_ELT(ans, 0, NEW_NUMERIC(n));
  SET_VECTOR_ELT(ans, 1, NEW_NUMERIC(n));
  
  PROTECT(v = coerceVector(v, REALSXP));
  ++nProtected;
  
  
  PROTECT(rr = coerceVector(rr, INTSXP));
  ++nProtected;
  
  PROTECT(cc = coerceVector(cc, INTSXP));
  ++nProtected;
  
  ngb=length(rr);
  
  xv=REAL(v);
  xrr=INTEGER(rr);
  xcc=INTEGER(cc);
  
  for (c=0;c < n;c++)  {
    R_CheckUserInterrupt();
    xi=xv[c];
    if (!R_IsNA(xi)) {
      row = (c / ncol) + 1;
      col = (c + 1) - ((row - 1) * ncol);
      
      double xn[ngb];
      q=-1;
      for (i=0; i < ngb; i++) {
        nnr= row + xrr[i];
        nnc = col + xcc[i];
        
        
        if ((nnr > 0) & (nnr <= nrow) & (nnc > 0) & (nnc <= ncol)) {
          cellnr = ((nnr - 1) * ncol) + nnc;
          if (!R_IsNA(xv[(cellnr-1)])) {
            q+=1;
            xn[q]=xv[(cellnr-1)];
          }
        }
      }
      
      // sort
      for (i=0;i <= (q-1);i++) {
        for (j=i+1;j <= q;j++) {
          if (xn[i] > xn[j]) {
            a=xn[i];
            xn[i]=xn[j];
            xn[j]=a;
          }
        }
      }
      //------
      
      a=xn[0];
      count=1;
      e=0;
      qq=q+1;
      
      for (i=1;i <= q;i++) {
        if (xn[i] != a) {
          e = e + ((count / qq) * log2(count / qq));
          a=xn[i];
          count=1;
        } else {
          count+=1;
        }
      }
      e = e + ((count / qq) * log2(count / qq));
      w=0;
      for (i=0; i <= q;i++) {
        w = w + fabs(xn[i] - xi);
      }
      w = w / ((qq - 1) * (ncl - 1));
      
      if (qq > ncl) {
        s = log2(ncl);
      } else {
        s = log2(qq);
      }
      NUMERIC_POINTER(VECTOR_ELT(ans, 0))[c] = -e / s;
      //xans[c] = (-e * w) / s;
      NUMERIC_POINTER(VECTOR_ELT(ans, 1))[c] = w;
    } else {
      //xans[c]=R_NaReal;
      NUMERIC_POINTER(VECTOR_ELT(ans, 0))[c] = R_NaReal;
      NUMERIC_POINTER(VECTOR_ELT(ans, 1))[c] = R_NaReal;
    }
  }
  UNPROTECT(nProtected);
  return(ans);
  
}
Example #10
0
/* NOTE: For environments serialize.c calls this function to find if
   there is a class attribute in order to reconstruct the object bit
   if needed.  This means the function cannot use OBJECT(vec) == 0 to
   conclude that the class attribute is R_NilValue.  If you want to
   rewrite this function to use such a pre-test, be sure to adjust
   serialize.c accordingly.  LT */
SEXP attribute_hidden getAttrib0(SEXP vec, SEXP name)
{
    SEXP s;
    int len, i, any;

    if (name == R_NamesSymbol) {
	if(isVector(vec) || isList(vec) || isLanguage(vec)) {
	    s = getAttrib(vec, R_DimSymbol);
	    if(TYPEOF(s) == INTSXP && length(s) == 1) {
		s = getAttrib(vec, R_DimNamesSymbol);
		if(!isNull(s)) {
		    SET_NAMED(VECTOR_ELT(s, 0), 2);
		    return VECTOR_ELT(s, 0);
		}
	    }
	}
	if (isList(vec) || isLanguage(vec)) {
	    len = length(vec);
	    PROTECT(s = allocVector(STRSXP, len));
	    i = 0;
	    any = 0;
	    for ( ; vec != R_NilValue; vec = CDR(vec), i++) {
		if (TAG(vec) == R_NilValue)
		    SET_STRING_ELT(s, i, R_BlankString);
		else if (isSymbol(TAG(vec))) {
		    any = 1;
		    SET_STRING_ELT(s, i, PRINTNAME(TAG(vec)));
		}
		else
		    error(_("getAttrib: invalid type (%s) for TAG"),
			  type2char(TYPEOF(TAG(vec))));
	    }
	    UNPROTECT(1);
	    if (any) {
		if (!isNull(s)) SET_NAMED(s, 2);
		return (s);
	    }
	    return R_NilValue;
	}
    }
    /* This is where the old/new list adjustment happens. */
    for (s = ATTRIB(vec); s != R_NilValue; s = CDR(s))
	if (TAG(s) == name) {
	    if (name == R_DimNamesSymbol && TYPEOF(CAR(s)) == LISTSXP) {
		SEXP _new, old;
		int i;
		_new = allocVector(VECSXP, length(CAR(s)));
		old = CAR(s);
		i = 0;
		while (old != R_NilValue) {
		    SET_VECTOR_ELT(_new, i++, CAR(old));
		    old = CDR(old);
		}
		SET_NAMED(_new, 2);
		return _new;
	    }
	    SET_NAMED(CAR(s), 2);
	    return CAR(s);
	}
    return R_NilValue;
}
Example #11
0
SEXP TASCA_min(SEXP vect, SEXP tau, SEXP numberofsamples){
	
	//get the lengths
	//int i,j,sum,sum_tot;
	//int bytes = 0;
	int value_count = length(vect);
	int vc_m1 = value_count - 1;
	int vc_m2 = vc_m1 - 1;
	dbl_array *vector, *vect_sorted, *Q_Max_vec;
	dbl_matrix *Cc_Mat, *Q_Mat, *H_Mat1, *H_Mat2;
	int_matrix *Ind_Mat, *P_Mat, *v_vec;
	final_result_tri f_res;

	//sort the vect into vect_sorted
	vector = init_dbl_array(REAL(vect), value_count, 1);

	vect_sorted = init_dbl_array(0, value_count, 0);
	memcpy(vect_sorted->values, vector->values, vect_sorted->length * sizeof(double));
	qsort(vect_sorted->values, vect_sorted->length, sizeof(double), comp);

	//name the required SEXP Objects
	SEXP result, binarized_vector, threshold1, threshold2, p_value, other_results, Cc, Ind, P, Q, H1, H2, Q_max, v, Names;

	//allocate memory for saving calculated values
	alloc_Accelerator_Memory(value_count);
	alloc_Accelerator_Memory_tri_min(value_count);
	
	//allocate the final result and set the names of the entries
	PROTECT(result = allocVector(VECSXP, 5));
	PROTECT(Names = allocVector(VECSXP, 5));
	SET_VECTOR_ELT(Names,0, mkChar("binarized_vector"));
	SET_VECTOR_ELT(Names,1, mkChar("threshold1"));
	SET_VECTOR_ELT(Names,2, mkChar("threshold2"));
	SET_VECTOR_ELT(Names,3, mkChar("p_value"));
	SET_VECTOR_ELT(Names,4, mkChar("other_results"));
	setAttrib(result, R_NamesSymbol, Names);
	UNPROTECT(1);

	PROTECT(other_results = allocVector(VECSXP, 8));
	PROTECT(Names = allocVector(VECSXP, 8));
	SET_VECTOR_ELT(Names,0, mkChar("Cc"));
	SET_VECTOR_ELT(Names,1, mkChar("Ind"));
	SET_VECTOR_ELT(Names,2, mkChar("P_Mat"));
	SET_VECTOR_ELT(Names,3, mkChar("Q_Mat"));
	SET_VECTOR_ELT(Names,4, mkChar("H_Mat1"));
	SET_VECTOR_ELT(Names,5, mkChar("H_Mat2"));
	SET_VECTOR_ELT(Names,6, mkChar("maximal_Qs"));
	SET_VECTOR_ELT(Names,7, mkChar("v_vec"));
	setAttrib(other_results, R_NamesSymbol, Names);
	UNPROTECT(1);


	//allocate memory for result matrices and vectors and set the matrix values to zero (because they aren't
	//all overwritten by the functions)
	PROTECT(binarized_vector = allocVector(INTSXP, value_count));
	PROTECT(threshold1 = allocVector(REALSXP, 1));
	PROTECT(threshold2 = allocVector(REALSXP, 1));
	PROTECT(p_value = allocVector(REALSXP, 1));
	PROTECT(Cc = allocMatrix(REALSXP, vc_m1, vc_m1));
	PROTECT(Ind = allocMatrix(INTSXP, vc_m1, vc_m2));
	PROTECT(P = allocMatrix(INTSXP, vc_m2, vc_m2));
	PROTECT(Q = allocMatrix(REALSXP, vc_m2, vc_m2));
	PROTECT(H1 = allocMatrix(REALSXP, vc_m2, vc_m2));
	PROTECT(H2 = allocMatrix(REALSXP, vc_m2, vc_m2));
	PROTECT(Q_max = allocVector(REALSXP, vc_m2));
	PROTECT(v = allocMatrix(INTSXP, vc_m2, 2));

	Cc_Mat = init_dbl_matrix(REAL(Cc), vc_m1, vc_m1, 0);
	Ind_Mat = init_int_matrix(INTEGER(Ind), vc_m2, vc_m1, 0);
	P_Mat = init_int_matrix(INTEGER(P), vc_m2, vc_m2, 0);
	v_vec = init_int_matrix(INTEGER(v), vc_m2, 2, 0);
	Q_Max_vec = init_dbl_array(REAL(Q_max), vc_m2, 0);
	Q_Mat = init_dbl_matrix(REAL(Q), vc_m2, vc_m2, 0);
	H_Mat1 = init_dbl_matrix(REAL(H1), vc_m2, vc_m2, 0);
	H_Mat2 = init_dbl_matrix(REAL(H2), vc_m2, vc_m2, 0);
	f_res.binarized_vector = init_int_array(INTEGER(binarized_vector), value_count, 0);
	f_res.p = REAL(p_value);
	f_res.threshold1 = REAL(threshold1);
	f_res.threshold2 = REAL(threshold2);

	//start the computation of the entries of all matrices
	calc_First_Cost_Matrix_Line(Cc_Mat, vect_sorted);
	calc_RestCc_and_Ind_Matrices(Cc_Mat, Ind_Mat, vect_sorted);
	calc_P_Matrix(P_Mat, Ind_Mat);
	calc_V_tri_min(v_vec, Q_Max_vec, Q_Mat, H_Mat1, H_Mat2, P_Mat, vect_sorted);
	
	//free the memory for calculated values
	free_Accelerator_Memory();
	free_Accelerator_Memory_tri_min();

	//calculate the final three results
	calc_final_results_tri_min(&f_res, v_vec, vector, vect_sorted, *REAL(tau), *INTEGER(numberofsamples));

	//free(vect_sorted);
	destroy_dbl_array(vector);
	destroy_dbl_array(vect_sorted);
	destroy_dbl_matrix(Cc_Mat);
	destroy_int_matrix(Ind_Mat);
	destroy_int_matrix(P_Mat);
	destroy_int_matrix(v_vec);
	destroy_dbl_array(Q_Max_vec);
	destroy_dbl_matrix(Q_Mat);
	destroy_dbl_matrix(H_Mat1);
	destroy_dbl_matrix(H_Mat2);
	destroy_int_array(f_res.binarized_vector);

	//assign the computed elements to the final result
	SET_VECTOR_ELT(other_results,0, Cc);
	SET_VECTOR_ELT(other_results,1, Ind);
	SET_VECTOR_ELT(other_results,2, P);
	SET_VECTOR_ELT(other_results,3, Q);
	SET_VECTOR_ELT(other_results,4, H1);
	SET_VECTOR_ELT(other_results,5, H2);
	SET_VECTOR_ELT(other_results,6, Q_max);
	SET_VECTOR_ELT(other_results,7, v);

	SET_VECTOR_ELT(result,0, binarized_vector);
	SET_VECTOR_ELT(result,1, threshold1);
	SET_VECTOR_ELT(result,2, threshold2);
	SET_VECTOR_ELT(result,3, p_value);
	SET_VECTOR_ELT(result,4, other_results);

	UNPROTECT(14);
	return result;
}
Example #12
0
File: dedup.c Project: cran/bnlearn
/* remove one variable in each highly-correlated pair. */
SEXP dedup (SEXP data, SEXP threshold, SEXP complete, SEXP debug) {

int i = 0, j = 0, k = 0, dropped = 0, nc = 0;
int debuglevel = isTRUE(debug);
double *mean = NULL, *sse = NULL, *xx = NULL, *yy = NULL;
double cur_mean[2], cur_sse[2];
double tol = MACHINE_TOL, t = NUM(threshold);
long double sum = 0;
SEXP result, colnames;
gdata dt = { 0 };

  /* extract the columns from the data frame. */
  dt = gdata_from_SEXP(data, 0);
  meta_init_flags(&(dt.m), 0, complete, R_NilValue);
  meta_copy_names(&(dt.m), 0, data);
  /* set up the vectors for the pairwise complete observations. */
  xx = Calloc1D(dt.m.nobs, sizeof(double));
  yy = Calloc1D(dt.m.nobs, sizeof(double));

  if (debuglevel > 0)
    Rprintf("* caching means and variances.\n");

  mean = Calloc1D(dt.m.ncols, sizeof(double));
  sse = Calloc1D(dt.m.ncols, sizeof(double));

  /* cache the mean and variance of complete variables. */
  for (j = 0; j < dt.m.ncols; j++) {

    if (!dt.m.flag[j].complete)
      continue;

    mean[j] = c_mean(dt.col[j], dt.m.nobs);
    sse[j] = c_sse(dt.col[j], mean[j], dt.m.nobs);

  }/*FOR*/

  /* main loop. */
  for (j = 0; j < dt.m.ncols - 1; j++) {

    /* skip variables already flagged for removal. */
    if (dt.m.flag[j].drop)
      continue;

    if (debuglevel > 0)
      Rprintf("* looking at %s with %d variables still to check.\n",
        dt.m.names[j], dt.m.ncols - (j + 1));

    for (k = j + 1; k < dt.m.ncols; k++) {

      /* skip variables already flagged for removal. */
      if (dt.m.flag[k].drop)
        continue;

      if (dt.m.flag[j].complete && dt.m.flag[k].complete) {

        /* use the cached means and variances. */
        cur_mean[0] = mean[j];
        cur_mean[1] = mean[k];
        cur_sse[0] = sse[j];
        cur_sse[1] = sse[k];

        /* compute the covariance. */
        for (i = 0, sum = 0; i < dt.m.nobs; i++)
          sum += (dt.col[j][i] - cur_mean[0]) * (dt.col[k][i] - cur_mean[1]);

      }/*THEN*/
      else {

        for (i = 0, nc = 0; i < dt.m.nobs; i++) {

          if (ISNAN(dt.col[j][i]) || ISNAN(dt.col[k][i]))
            continue;

          xx[nc] = dt.col[j][i];
          yy[nc++] = dt.col[k][i];

        }/*FOR*/


        /* if there are no complete observations, take the variables to be
         * independent. */
        if (nc == 0)
          continue;

        cur_mean[0] = c_mean(xx, nc);
        cur_mean[1] = c_mean(yy, nc);
        cur_sse[0] = c_sse(xx, cur_mean[0], nc);
        cur_sse[1] = c_sse(yy, cur_mean[1], nc);

        /* compute the covariance. */
        for (i = 0, sum = 0; i < nc; i++)
          sum += (xx[i] - cur_mean[0]) * (yy[i] - cur_mean[1]);

      }/*ELSE*/

      /* safety check against "divide by zero" errors. */
      if ((cur_sse[0] < tol) || (cur_sse[1] < tol))
        sum = 0;
      else
        sum /= sqrt(cur_sse[0] * cur_sse[1]);

      /* test the correlation against the threshold. */
      if (fabsl(sum) > t) {

        if (debuglevel > 0)
          Rprintf("%s is collinear with %s, dropping %s with COR = %.4Lf\n",
            dt.m.names[j], dt.m.names[k], dt.m.names[k], sum);

        /* flag the variable for removal. */
        dt.m.flag[k].drop = TRUE;
        dropped++;

      }/*THEN*/

    }/*FOR*/

  }/*FOR*/

  /* set up the return value. */
  PROTECT(result = allocVector(VECSXP, dt.m.ncols - dropped));
  PROTECT(colnames = allocVector(STRSXP, dt.m.ncols - dropped));

  for (j = 0, k = 0; j < dt.m.ncols; j++)
    if (!dt.m.flag[j].drop) {

      SET_STRING_ELT(colnames, k, mkChar(dt.m.names[j]));
      SET_VECTOR_ELT(result, k++, VECTOR_ELT(data, j));

    }/*THEN*/

  setAttrib(result, R_NamesSymbol, colnames);

  /* make it a data frame. */
  minimal_data_frame(result);

  Free1D(mean);
  Free1D(sse);
  Free1D(xx);
  Free1D(yy);
  FreeGDT(dt, FALSE);

  UNPROTECT(2);

  return result;

}/*DEDUP*/
Example #13
0
File: scdd_f.c Project: cran/rcdd
SEXP scdd_f(SEXP m, SEXP h, SEXP roworder, SEXP adjacency,
    SEXP inputadjacency, SEXP incidence, SEXP inputincidence)
{
    int i, j, k;

    GetRNGstate();
    if (! isMatrix(m))
        error("'m' must be matrix");
    if (! isLogical(h))
        error("'h' must be logical");
    if (! isString(roworder))
        error("'roworder' must be character");
    if (! isLogical(adjacency))
        error("'adjacency' must be logical");
    if (! isLogical(inputadjacency))
        error("'inputadjacency' must be logical");
    if (! isLogical(incidence))
        error("'incidence' must be logical");
    if (! isLogical(inputincidence))
        error("'inputincidence' must be logical");

    if (LENGTH(h) != 1)
        error("'h' must be scalar");
    if (LENGTH(roworder) != 1)
        error("'roworder' must be scalar");
    if (LENGTH(adjacency) != 1)
        error("'adjacency' must be scalar");
    if (LENGTH(inputadjacency) != 1)
        error("'inputadjacency' must be scalar");
    if (LENGTH(incidence) != 1)
        error("'incidence' must be scalar");
    if (LENGTH(inputincidence) != 1)
        error("'inputincidence' must be scalar");

    if (! isReal(m))
        error("'m' must be double");

    SEXP m_dim;
    PROTECT(m_dim = getAttrib(m, R_DimSymbol));
    int nrow = INTEGER(m_dim)[0];
    int ncol = INTEGER(m_dim)[1];
    UNPROTECT(1);

#ifdef BLATHER
    printf("nrow = %d\n", nrow);
    printf("ncol = %d\n", ncol);
#endif /* BLATHER */

    if ((! LOGICAL(h)[0]) && nrow <= 0)
        error("no rows in 'm', not allowed for V-representation");
    if (ncol <= 2)
        error("no cols in m[ , - c(1, 2)]");

    for (i = 0; i < nrow * ncol; i++)
        if (! R_finite(REAL(m)[i]))
            error("'m' not finite-valued");

    for (i = 0; i < nrow; i++) {
        double foo = REAL(m)[i];
        if (! (foo == 0.0 || foo == 1.0))
            error("column one of 'm' not zero-or-one valued");
    }
    if (! LOGICAL(h)[0])
        for (i = nrow; i < 2 * nrow; i++) {
            double foo = REAL(m)[i];
            if (! (foo == 0.0 || foo == 1.0))
                error("column two of 'm' not zero-or-one valued");
        }

    ddf_set_global_constants();

    myfloat value;
    ddf_init(value);

    ddf_MatrixPtr mf = ddf_CreateMatrix(nrow, ncol - 1);
    /* note our matrix has one more column than Fukuda's */

    /* representation */
    if(LOGICAL(h)[0])
        mf->representation = ddf_Inequality;
    else
        mf->representation = ddf_Generator;

    mf->numbtype = ddf_Real;

    /* linearity */
    for (i = 0; i < nrow; i++) {
        double foo = REAL(m)[i];
        if (foo == 1.0)
            set_addelem(mf->linset, i + 1);
        /* note conversion from zero-origin to one-origin indexing */
    }

    /* matrix */
    for (j = 1, k = nrow; j < ncol; j++)
        for (i = 0; i < nrow; i++, k++) {
            ddf_set_d(value, REAL(m)[k]);
            ddf_set(mf->matrix[i][j - 1], value);
            /* note our matrix has one more column than Fukuda's */
        }

    ddf_RowOrderType strategy = ddf_LexMin;
    const char *row_str = CHAR(STRING_ELT(roworder, 0));
    if(strcmp(row_str, "maxindex") == 0)
        strategy = ddf_MaxIndex;
    else if(strcmp(row_str, "minindex") == 0)
        strategy = ddf_MinIndex;
    else if(strcmp(row_str, "mincutoff") == 0)
        strategy = ddf_MinCutoff;
    else if(strcmp(row_str, "maxcutoff") == 0)
        strategy = ddf_MaxCutoff;
    else if(strcmp(row_str, "mixcutoff") == 0)
        strategy = ddf_MixCutoff;
    else if(strcmp(row_str, "lexmin") == 0)
        strategy = ddf_LexMin;
    else if(strcmp(row_str, "lexmax") == 0)
        strategy = ddf_LexMax;
    else if(strcmp(row_str, "randomrow") == 0)
        strategy = ddf_RandomRow;
    else
        error("roworder not recognized");

    ddf_ErrorType err = ddf_NoError;
    ddf_PolyhedraPtr poly = ddf_DDMatrix2Poly2(mf, strategy, &err);

    if (poly->child != NULL && poly->child->CompStatus == ddf_InProgress) {
        ddf_FreeMatrix(mf);
        ddf_FreePolyhedra(poly);
        ddf_clear(value);
        ddf_free_global_constants();
        error("Computation failed, floating-point arithmetic problem\n");
    }

    if (err != ddf_NoError) {
        rrf_WriteErrorMessages(err);
        ddf_FreeMatrix(mf);
        ddf_FreePolyhedra(poly);
        ddf_clear(value);
        ddf_free_global_constants();
        error("failed");
    }

    ddf_MatrixPtr aout = NULL;
    if (poly->representation == ddf_Inequality)
        aout = ddf_CopyGenerators(poly);
    else if (poly->representation == ddf_Generator)
        aout = ddf_CopyInequalities(poly);
    else
        error("Cannot happen!  poly->representation no good\n");
    if (aout == NULL)
        error("Cannot happen!  aout no good\n");

    int mrow = aout->rowsize;
    int mcol = aout->colsize;

    if (mcol + 1 != ncol)
        error("Cannot happen!  computed matrix has wrong number of columns");

#ifdef BLATHER
    printf("mrow = %d\n", mrow);
    printf("mcol = %d\n", mcol);
#endif /* BLATHER */

    SEXP bar;
    PROTECT(bar = allocMatrix(REALSXP, mrow, ncol));

    /* linearity output */
    for (i = 0; i < mrow; i++)
        if (set_member(i + 1, aout->linset))
            REAL(bar)[i] = 1.0;
        else
            REAL(bar)[i] = 0.0;
    /* note conversion from zero-origin to one-origin indexing */

    /* matrix output */
    for (j = 1, k = mrow; j < ncol; j++)
        for (i = 0; i < mrow; i++, k++) {
            double ax = ddf_get_d(aout->matrix[i][j - 1]);
            /* note our matrix has one more column than Fukuda's */
            REAL(bar)[k] = ax;
        }

    int nresult = 1;

    SEXP baz_adj = NULL;
    if (LOGICAL(adjacency)[0]) {
        ddf_SetFamilyPtr sout = ddf_CopyAdjacency(poly);
        PROTECT(baz_adj = rrf_WriteSetFamily(sout));
        ddf_FreeSetFamily(sout);
        nresult++;
    }

    SEXP baz_inp_adj = NULL;
    if (LOGICAL(inputadjacency)[0]) {
        ddf_SetFamilyPtr sout = ddf_CopyInputAdjacency(poly);
        PROTECT(baz_inp_adj = rrf_WriteSetFamily(sout));
        ddf_FreeSetFamily(sout);
        nresult++;
    }

    SEXP baz_inc = NULL;
    if (LOGICAL(incidence)[0]) {
        ddf_SetFamilyPtr sout = ddf_CopyIncidence(poly);
        PROTECT(baz_inc = rrf_WriteSetFamily(sout));
        ddf_FreeSetFamily(sout);
        nresult++;
    }

    SEXP baz_inp_inc = NULL;
    if (LOGICAL(inputincidence)[0]) {
        ddf_SetFamilyPtr sout = ddf_CopyInputIncidence(poly);
        PROTECT(baz_inp_inc = rrf_WriteSetFamily(sout));
        ddf_FreeSetFamily(sout);
        nresult++;
    }

    SEXP result, resultnames;
    PROTECT(result = allocVector(VECSXP, nresult));
    PROTECT(resultnames = allocVector(STRSXP, nresult));

    SET_STRING_ELT(resultnames, 0, mkChar("output"));
    SET_VECTOR_ELT(result, 0, bar);

    int iresult = 1;

    if (baz_adj) {
        SET_STRING_ELT(resultnames, iresult, mkChar("adjacency"));
        SET_VECTOR_ELT(result, iresult, baz_adj);
        iresult++;
    }
    if (baz_inp_adj) {
        SET_STRING_ELT(resultnames, iresult, mkChar("inputadjacency"));
        SET_VECTOR_ELT(result, iresult, baz_inp_adj);
        iresult++;
    }
    if (baz_inc) {
        SET_STRING_ELT(resultnames, iresult, mkChar("incidence"));
        SET_VECTOR_ELT(result, iresult, baz_inc);
        iresult++;
    }
    if (baz_inp_inc) {
        SET_STRING_ELT(resultnames, iresult, mkChar("inputincidence"));
        SET_VECTOR_ELT(result, iresult, baz_inp_inc);
        iresult++;
    }
    namesgets(result, resultnames);

    if (aout->objective != ddf_LPnone)
        error("Cannot happen! aout->objective != ddf_LPnone\n");

    ddf_FreeMatrix(aout);
    ddf_FreeMatrix(mf);
    ddf_FreePolyhedra(poly);
    ddf_clear(value);
    ddf_free_global_constants();

    PutRNGstate();
    UNPROTECT(2 + nresult);
    return result;
}
Example #14
0
SEXP readSlicePorStream(SEXP porStream, SEXP what, SEXP s_vars, SEXP s_cases, SEXP s_types){
  porStreamBuf *b = get_porStreamBuf(porStream);
  PROTECT(s_vars = coerceVector(s_vars,LGLSXP));
  PROTECT(s_cases = coerceVector(s_cases,LGLSXP));
  PROTECT(s_types = coerceVector(s_types,INTSXP));
  int nvar = length(s_types);
  int ncases = length(s_cases);
  int *types = INTEGER(s_types);
  if(LENGTH(s_vars)!=nvar) error("\'s_vars\' argument has wrong length");

  int ii,i,j,k, m=0, n = 0;
  for(j = 0; j < nvar; j++) m+=LOGICAL(s_vars)[j];
  for(i = 0; i < ncases; i++) n+=LOGICAL(s_cases)[i];

  SEXP x, y, data;
  char *charbuf;
  int charbuflen = 0;
  PROTECT(data = allocVector(VECSXP,m));
  k = 0;
  for(j = 0; j < nvar; j++){
    if(types[j] > charbuflen) charbuflen = types[j];
    if(LOGICAL(s_vars)[j]){
      if(types[j]==0)
        SET_VECTOR_ELT(data,k,allocVector(REALSXP,n));
      else {
        SET_VECTOR_ELT(data,k,allocVector(STRSXP,n));
        }
      k++;
    }
  }
  charbuf = R_alloc(charbuflen+1,sizeof(char));
  ii = 0;
  for(i = 0; i < ncases; i++){
    if(atEndPorStream(b) || (b->pos < 80 && b->buf[b->pos] == 'Z')){
      int new_length = ii;
      for(j = 0; j < m; j++){
        x = VECTOR_ELT(data,j);
        SET_VECTOR_ELT(data,j,lengthgets(x,new_length));
      }
      n = new_length;
      break;
    }
    if(LOGICAL(s_cases)[i]){
      k = 0;
      for(j = 0; j < nvar; j++){
        if(atEndPorStream(b)) {
            printPorStreamBuf(b);
            warning("\nPremature end of data");
        }
        if(types[j]==0){
          if(LOGICAL(s_vars)[j]){
            REAL(VECTOR_ELT(data,k))[ii] = readDoublePorStream1(b);
            k++;
          }
          else {
            readDoublePorStream1(b);
          }
        }
        else {
          if(LOGICAL(s_vars)[j]){
            SET_STRING_ELT(VECTOR_ELT(data,k), ii,
                              mkChar(readCHARPorStream(b,charbuf,types[j])));
            k++;
          }
          else {
            readCHARPorStream(b,charbuf,types[j]);
          }
        }
      }
      ii++;
    }
    else {
      for(j = 0; j < nvar; j++){
        if(atEndPorStream(b)) {
            printPorStreamBuf(b);
            error("\nPremature end of data");
        }
        if(types[j]==0) readDoublePorStream1(b);
        else readCHARPorStream(b,charbuf,types[j]);
      }
    }
  }
  k = 0;
  for(j = 0; j < nvar; j++){
    if(LOGICAL(s_vars)[j]){
      x = VECTOR_ELT(what,j);
      y = VECTOR_ELT(data,k);
      copyMostAttrib(x,y);
      k++;
    }
  }

  UNPROTECT(4);
  return data;
}
Example #15
0
/* mean strength for p-values and score deltas. */
static void mean_strength_overall(SEXP *mean_df, SEXP strength, SEXP nodes,
  int nrows, int nstr, SEXP ref_hash, double *w) {

int i = 0, j = 0, *t = NULL;
double *mstr = NULL, *cur_strength = NULL;
long double cumw = 0;
SEXP mean_str, cur, cur_hash, try;

  /* allocate the strength accumulator vector. */
  PROTECT(mean_str = allocVector(REALSXP, nrows));
  SET_VECTOR_ELT(*mean_df, 2, mean_str);
  mstr = REAL(mean_str);
  memset(mstr, '\0', nrows * sizeof(double));

  for (i = 0; i < nstr; i++) {

    /* move to the next object. */
    cur = VECTOR_ELT(strength, i);
    /* get the strength values from the bn.strength object. */
    cur_strength = REAL(VECTOR_ELT(cur, 2));
    /* get the arc IDs to use to correctly match strengths. */
    PROTECT(cur_hash = arc_hash(cur, nodes, FALSE, FALSE));

    /* match the current arc IDs to the reference arc IDs. */
    PROTECT(try = match(ref_hash, cur_hash, 0));
    t = INTEGER(try);

    for (j = 0; j < nrows; j++)
      mstr[t[j] - 1] += w[i] * cur_strength[j];

    /* update the total weight mass. */
    cumw += w[i];

    UNPROTECT(2);

  }/*FOR*/

  /* rescale by the total weight mass. */
  for (j = 0; j < nrows; j++)
    mstr[j] /= cumw;

  UNPROTECT(1);

}/*MEAN_STRENGTH_OVERALL*/

/* mean strength for bootstrap probabilities. */
static void mean_strength_direction(SEXP *mean_df, SEXP strength, SEXP nodes,
  int nrows, int nstr, SEXP ref_hash, double *w) {

int i = 0, j = 0, *t = NULL, nnodes = length(nodes);
double *mstr = NULL, *mdir = NULL, *cur_strength = NULL, *cur_dir = NULL;
double fwd = 0, bkwd = 0;
long double cumw = 0;
SEXP mean_str, mean_dir, cur, cur_hash, try;


  /* allocate vectors for strength and direction. */
  PROTECT(mean_str = allocVector(REALSXP, nrows));
  SET_VECTOR_ELT(*mean_df, 2, mean_str);
  mstr = REAL(mean_str);
  memset(mstr, '\0', nrows * sizeof(double));
  PROTECT(mean_dir = allocVector(REALSXP, nrows));
  SET_VECTOR_ELT(*mean_df, 3, mean_dir);
  mdir = REAL(mean_dir);
  memset(mdir, '\0', nrows * sizeof(double));

  for (i = 0; i < nstr; i++) {

    /* move to the next object. */
    cur = VECTOR_ELT(strength, i);
    /* get the strength and direction values from the bn.strength object. */
    cur_strength = REAL(VECTOR_ELT(cur, 2));
    cur_dir = REAL(VECTOR_ELT(cur, 3));
    /* get the arc IDs to use to correctly match strengths. */
    PROTECT(cur_hash = arc_hash(cur, nodes, FALSE, FALSE));

    /* match the current arc IDs to the reference arc IDs. */
    PROTECT(try = match(ref_hash, cur_hash, 0));
    t = INTEGER(try);

    for (j = 0; j < nrows; j++)
      mstr[t[j] - 1] += w[i] * (cur_strength[j] * cur_dir[j]);

    /* update the total weight mass. */
    cumw += w[i];

    UNPROTECT(2);

  }/*FOR*/

  /* rescale by the total weight mass. */
  for (j = 0; j < nrows; j++)
    mstr[j] /= cumw;

  /* split arc strength from direction strength. */
  for (i = 0; i < nnodes; i++) {

    for (j = i + 1; j < nnodes; j++) {

      fwd = mstr[CMC(j, i, nnodes) - i - 1];
      bkwd = mstr[CMC(i, j, nnodes) - j];

      mstr[CMC(j, i, nnodes) - i - 1] = mstr[CMC(i, j, nnodes) - j] = fwd + bkwd;

      if (bkwd + fwd > 0) {

      mdir[CMC(j, i, nnodes) - i - 1] = fwd / (fwd + bkwd);
      mdir[CMC(i, j, nnodes) - j] = bkwd / (fwd + bkwd);

      }/*THEN*/
      else {

        mdir[CMC(j, i, nnodes) - i - 1] = mdir[CMC(i, j, nnodes) - j] = 0;

      }/*ELSE*/

    }/*FOR*/

  }/*FOR*/

  UNPROTECT(2);

}/*MEAN_STRENGTH_DIRECTION*/

/* average multiple bn.strength objects, with weights. */
SEXP mean_strength(SEXP strength, SEXP nodes, SEXP weights) {

int nstr = length(weights), ncols = 0, nrows = 0;
double *w = REAL(weights);
const char *m = NULL;
SEXP ref, ref_hash, mean_df, method;

  /* initialize the result using the first bn.strength object as a reference. */
  ref = VECTOR_ELT(strength, 0);
  ncols = length(ref);
  nrows = length(VECTOR_ELT(ref, 0));

  PROTECT(mean_df = allocVector(VECSXP, ncols));
  setAttrib(mean_df, R_NamesSymbol, getAttrib(ref, R_NamesSymbol));
  SET_VECTOR_ELT(mean_df, 0, VECTOR_ELT(ref, 0));
  SET_VECTOR_ELT(mean_df, 1, VECTOR_ELT(ref, 1));
  /* make it a data frame */
  minimal_data_frame(mean_df);

  /* compute the arc IDs to match arcs of later bn.strength objects. */
  PROTECT(ref_hash = arc_hash(ref, nodes, FALSE, FALSE));

  /* switch backend according to how the strengths were computed. */
  method = getAttrib(ref, BN_MethodSymbol);
  m = CHAR(STRING_ELT(method, 0));

  if ((strcmp(m, "score") == 0) || (strcmp(m, "test") == 0))
    mean_strength_overall(&mean_df, strength, nodes, nrows, nstr, ref_hash, w);
  else if (strcmp(m, "bootstrap") == 0)
    mean_strength_direction(&mean_df, strength, nodes, nrows, nstr, ref_hash, w);

  UNPROTECT(2);

  return mean_df;

}/*MEAN_STRENGTH*/
Example #16
0
File: elsa.c Project: rforge/elisa
SEXP elsa_vector(SEXP v, SEXP nb, SEXP nclass) {
  int nProtected=0;
  int  ncl, n, q, ngb, a;
  double e, w, s,  qq, count,xi;
  R_len_t i, j, c;
  SEXP ans;
  PROTECT(ans = NEW_LIST(2));
  ++nProtected;
  
  double *xv;
  ncl=INTEGER(nclass)[0];
  n=length(v);
  
  PROTECT(v = coerceVector(v, REALSXP));
  ++nProtected;
  
  SET_VECTOR_ELT(ans, 0, NEW_NUMERIC(n));
  SET_VECTOR_ELT(ans, 1, NEW_NUMERIC(n));
  
  xv=REAL(v);
  
  for (c=0;c < n;c++)  {
    R_CheckUserInterrupt();
    xi=xv[c];
    if (!R_IsNA(xi)) {
      
      ngb = length(VECTOR_ELT(nb,c));
      
      double xn[ngb+1];
      q=-1;
      for (i=0;i < ngb;i++) {
        a=xv[INTEGER_POINTER(VECTOR_ELT(nb,c))[i] - 1];
        if (!R_IsNA(a)) {
          q+=1;
          xn[i]=a;
        }
      }
      q+=1;
      xn[q]=xi;
      
      // sort
      for (i=0;i <= (q-1);i++) {
        for (j=i+1;j <= q;j++) {
          if (xn[i] > xn[j]) {
            a=xn[i];
            xn[i]=xn[j];
            xn[j]=a;
          }
        }
      }
      //------
      
      a=xn[0];
      count=1;
      e=0;
      qq=q+1;
      
      for (i=1;i <= q;i++) {
        if (xn[i] != a) {
          e = e + ((count / qq) * log2(count / qq));
          a=xn[i];
          count=1;
        } else {
          count+=1;
        }
      }
      e = e + ((count / qq) * log2(count / qq));
      w=0;
      for (i=0; i <= q;i++) {
        w = w + fabs(xn[i] - xi);
      }
      w = w / ((qq - 1) * (ncl - 1));
      
      if (qq > ncl) {
        s = log2(ncl);
      } else {
        s = log2(qq);
      }
      
      NUMERIC_POINTER(VECTOR_ELT(ans, 0))[c] = -e / s;
      //xans[c] = (-e * w) / s;
      NUMERIC_POINTER(VECTOR_ELT(ans, 1))[c] = w;
      
    } else {
      NUMERIC_POINTER(VECTOR_ELT(ans, 0))[c] = R_NaReal;
      NUMERIC_POINTER(VECTOR_ELT(ans, 1))[c] = R_NaReal;
    }
  }
  UNPROTECT(nProtected);
  return(ans);
}
Example #17
0
File: seq.c Project: kalibera/rexp
/* rep.int(x, times) for a vector times */
static SEXP rep2(SEXP s, SEXP ncopy)
{
    R_xlen_t i, na, nc, n;
    int j;
    SEXP a, t;

    PROTECT(t = coerceVector(ncopy, INTSXP));

    nc = xlength(ncopy);
    na = 0;
    for (i = 0; i < nc; i++) {
//	if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
	if (INTEGER(t)[i] == NA_INTEGER || INTEGER(t)[i] < 0)
	    error(_("invalid '%s' value"), "times");
	na += INTEGER(t)[i];
    }

/*    R_xlen_t ni = NINTERRUPT, ratio;
    if(nc > 0) {
	ratio = na/nc; // average no of replications
	if (ratio > 1000U) ni = 1000U;
	} */
    PROTECT(a = allocVector(TYPEOF(s), na));
    n = 0;
    switch (TYPEOF(s)) {
    case LGLSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    for (j = 0; j < INTEGER(t)[i]; j++)
		LOGICAL(a)[n++] = LOGICAL(s)[i];
	}
	break;
    case INTSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    for (j = 0; j < INTEGER(t)[i]; j++)
		INTEGER(a)[n++] = INTEGER(s)[i];
	}
	break;
    case REALSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    for (j = 0; j < INTEGER(t)[i]; j++)
		REAL(a)[n++] = REAL(s)[i];
	}
	break;
    case CPLXSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    for (j = 0; j < INTEGER(t)[i]; j++)
		COMPLEX(a)[n++] = COMPLEX(s)[i];
	}
	break;
    case STRSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    for (j = 0; j < INTEGER(t)[i]; j++)
		SET_STRING_ELT(a, n++, STRING_ELT(s, i));
	}
	break;
    case VECSXP:
    case EXPRSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    SEXP elt = lazy_duplicate(VECTOR_ELT(s, i));
	    for (j = 0; j < INTEGER(t)[i]; j++)
		SET_VECTOR_ELT(a, n++, elt);
	    if (j > 1) SET_NAMED(elt, 2);
	}
	break;
    case RAWSXP:
	for (i = 0; i < nc; i++) {
//	    if ((i+1) % ni == 0) R_CheckUserInterrupt();
	    for (j = 0; j < INTEGER(t)[i]; j++)
		RAW(a)[n++] = RAW(s)[i];
	}
	break;
    default:
	UNIMPLEMENTED_TYPE("rep2", s);
    }
    UNPROTECT(2);
    return a;
}
Example #18
0
SEXP attribute_hidden
do_mapply(SEXP call, SEXP op, SEXP args, SEXP rho)
{
    checkArity(op, args);

    SEXP f = CAR(args), varyingArgs = CADR(args), constantArgs = CADDR(args);
    int m, zero = 0;
    R_xlen_t *lengths, *counters, longest = 0;

    m = length(varyingArgs);
    SEXP vnames = PROTECT(getAttrib(varyingArgs, R_NamesSymbol));
    Rboolean named = vnames != R_NilValue;

    lengths = (R_xlen_t *)  R_alloc(m, sizeof(R_xlen_t));
    for (int i = 0; i < m; i++) {
	SEXP tmp1 = VECTOR_ELT(varyingArgs, i);
	lengths[i] = xlength(tmp1);
	if (isObject(tmp1)) { // possibly dispatch on length()
	    /* Cache the .Primitive: unclear caching is worthwhile. */
	    static SEXP length_op = NULL;
	    if (length_op == NULL) length_op = R_Primitive("length");
	    // DispatchOrEval() needs 'args' to be a pairlist
	    SEXP ans, tmp2 = PROTECT(list1(tmp1));
	    if (DispatchOrEval(call, length_op, "length", tmp2, rho, &ans, 0, 1))
		lengths[i] = (R_xlen_t) (TYPEOF(ans) == REALSXP ?
					 REAL(ans)[0] : asInteger(ans));
	    UNPROTECT(1);
	}
	if (lengths[i] == 0) zero++;
	if (lengths[i] > longest) longest = lengths[i];
    }
    if (zero && longest)
	error(_("zero-length inputs cannot be mixed with those of non-zero length"));

    counters = (R_xlen_t *) R_alloc(m, sizeof(R_xlen_t));
    memset(counters, 0, m * sizeof(R_xlen_t));

    SEXP mindex = PROTECT(allocVector(VECSXP, m));
    SEXP nindex = PROTECT(allocVector(VECSXP, m));

    /* build a call like
       f(dots[[1]][[4]], dots[[2]][[4]], dots[[3]][[4]], d=7)
    */

    SEXP fcall = R_NilValue; // -Wall
    if (constantArgs == R_NilValue)
	;
    else if (isVectorList(constantArgs))
	fcall = VectorToPairList(constantArgs);
    else
	error(_("argument 'MoreArgs' of 'mapply' is not a list"));
    PROTECT_INDEX fi;
    PROTECT_WITH_INDEX(fcall, &fi);

    Rboolean realIndx = longest > INT_MAX;
    SEXP Dots = install("dots");
    for (int j = m - 1; j >= 0; j--) {
	SET_VECTOR_ELT(mindex, j, ScalarInteger(j + 1));
	SET_VECTOR_ELT(nindex, j, allocVector(realIndx ? REALSXP : INTSXP, 1));
	SEXP tmp1 = PROTECT(lang3(R_Bracket2Symbol, Dots, VECTOR_ELT(mindex, j)));
	SEXP tmp2 = PROTECT(lang3(R_Bracket2Symbol, tmp1, VECTOR_ELT(nindex, j)));
	REPROTECT(fcall = LCONS(tmp2, fcall), fi);
	UNPROTECT(2);
	if (named && CHAR(STRING_ELT(vnames, j))[0] != '\0')
	    SET_TAG(fcall, installTrChar(STRING_ELT(vnames, j)));
    }

    REPROTECT(fcall = LCONS(f, fcall), fi);

    SEXP ans = PROTECT(allocVector(VECSXP, longest));

    for (int i = 0; i < longest; i++) {
	for (int j = 0; j < m; j++) {
	    counters[j] = (++counters[j] > lengths[j]) ? 1 : counters[j];
	    if (realIndx)
		REAL(VECTOR_ELT(nindex, j))[0] = (double) counters[j];
	    else
		INTEGER(VECTOR_ELT(nindex, j))[0] = (int) counters[j];
	}
	SEXP tmp = eval(fcall, rho);
	if (NAMED(tmp))
	    tmp = duplicate(tmp);
	SET_VECTOR_ELT(ans, i, tmp);
    }

    for (int j = 0; j < m; j++)
	if (counters[j] != lengths[j])
	    warning(_("longer argument not a multiple of length of shorter"));

    UNPROTECT(5);
    return ans;
}
Example #19
0
File: seq.c Project: kalibera/rexp
/* rep(), allowing for both times and each */
static SEXP rep4(SEXP x, SEXP times, R_xlen_t len, int each, R_xlen_t nt)
{
    SEXP a;
    R_xlen_t lx = xlength(x);
    R_xlen_t i, j, k, k2, k3, sum;

    // faster code for common special case
    if (each == 1 && nt == 1) return rep3(x, lx, len);

    PROTECT(a = allocVector(TYPEOF(x), len));

    switch (TYPEOF(x)) {
    case LGLSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		LOGICAL(a)[i] = LOGICAL(x)[(i/each) % lx];
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    LOGICAL(a)[k2++] = LOGICAL(x)[i];
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    case INTSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		INTEGER(a)[i] = INTEGER(x)[(i/each) % lx];
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    INTEGER(a)[k2++] = INTEGER(x)[i];
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    case REALSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		REAL(a)[i] = REAL(x)[(i/each) % lx];
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    REAL(a)[k2++] = REAL(x)[i];
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    case CPLXSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		COMPLEX(a)[i] = COMPLEX(x)[(i/each) % lx];
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    COMPLEX(a)[k2++] = COMPLEX(x)[i];
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    case STRSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		SET_STRING_ELT(a, i, STRING_ELT(x, (i/each) % lx));
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    SET_STRING_ELT(a, k2++, STRING_ELT(x, i));
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    case VECSXP:
    case EXPRSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		SET_VECTOR_ELT(a, i, VECTOR_ELT(x, (i/each) % lx));
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    SET_VECTOR_ELT(a, k2++, VECTOR_ELT(x, i));
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    case RAWSXP:
	if(nt == 1)
	    for(i = 0; i < len; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		RAW(a)[i] = RAW(x)[(i/each) % lx];
	    }
	else {
	    for(i = 0, k = 0, k2 = 0; i < lx; i++) {
//		if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt();
		for(j = 0, sum = 0; j < each; j++) sum += INTEGER(times)[k++];
		for(k3 = 0; k3 < sum; k3++) {
		    RAW(a)[k2++] = RAW(x)[i];
		    if(k2 == len) goto done;
		}
	    }
	}
	break;
    default:
	UNIMPLEMENTED_TYPE("rep4", x);
    }
done:
    UNPROTECT(1);
    return a;
}
Example #20
0
/* a single step of the optimized hill climbing (one arc addition/removal/reversal). */
SEXP hc_opt_step(SEXP amat, SEXP nodes, SEXP added, SEXP cache, SEXP reference,
    SEXP wlmat, SEXP blmat, SEXP nparents, SEXP maxp, SEXP debug) {

int nnodes = length(nodes), i = 0, j = 0;
int *am = NULL, *ad = NULL, *w = NULL, *b = NULL, debuglevel = isTRUE(debug);
int counter = 0, update = 1, from = 0, to = 0, *path = NULL, *scratch = NULL;
double *cache_value = NULL, temp = 0, max = 0, tol = MACHINE_TOL;
double *mp = REAL(maxp), *np = REAL(nparents);
SEXP bestop;

  /* allocate and initialize the return value (use FALSE as a canary value). */
  PROTECT(bestop = allocVector(VECSXP, 3));
  setAttrib(bestop, R_NamesSymbol, mkStringVec(3, "op", "from", "to"));

  /* allocate and initialize a dummy FALSE object. */
  SET_VECTOR_ELT(bestop, 0, ScalarLogical(FALSE));

  /* allocate buffers for c_has_path(). */
  path = Calloc1D(nnodes, sizeof(int));
  scratch = Calloc1D(nnodes, sizeof(int));

  /* save pointers to the numeric/integer matrices. */
  cache_value = REAL(cache);
  ad = INTEGER(added);
  am = INTEGER(amat);
  w = INTEGER(wlmat);
  b = INTEGER(blmat);

  if (debuglevel > 0) {

     /* count how may arcs are to be tested. */
     for (i = 0; i < nnodes * nnodes; i++)
       counter += ad[i];

     Rprintf("----------------------------------------------------------------\n");
     Rprintf("* trying to add one of %d arcs.\n", counter);

  }/*THEN*/

  for (i = 0; i < nnodes; i++) {

    for (j = 0; j < nnodes; j++) {

      /* nothing to see, move along. */
      if (ad[CMC(i, j, nnodes)] == 0)
        continue;

      /* retrieve the score delta from the cache. */
      temp = cache_value[CMC(i, j, nnodes)];

      if (debuglevel > 0) {

        Rprintf("  > trying to add %s -> %s.\n", NODE(i), NODE(j));
        Rprintf("    > delta between scores for nodes %s %s is %lf.\n",
          NODE(i), NODE(j), temp);

      }/*THEN*/

      /* this score delta is the best one at the moment, so add the arc if it
       * does not introduce cycles in the graph. */
      if (temp - max > tol) {

        if (c_has_path(j, i, am, nnodes, nodes, FALSE, FALSE, path, scratch,
              FALSE)) {

          if (debuglevel > 0)
            Rprintf("    > not adding, introduces cycles in the graph.\n");

          continue;

        }/*THEN*/

        if (debuglevel > 0)
          Rprintf("    @ adding %s -> %s.\n", NODE(i), NODE(j));

        /* update the return value. */
        bestop_update(bestop, "set", NODE(i), NODE(j));
        /* store the node indices to update the reference scores. */
        from = i;
        to = j;

        /* update the threshold score delta. */
        max = temp;

      }/*THEN*/

    }/*FOR*/

  }/*FOR*/

  if (debuglevel > 0) {

     /* count how may arcs are to be tested. */
     for (i = 0, counter = 0; i < nnodes * nnodes; i++)
       counter += am[i] * (1 - w[i]);

     Rprintf("----------------------------------------------------------------\n");
     Rprintf("* trying to remove one of %d arcs.\n", counter);

  }/*THEN*/

  for (i = 0; i < nnodes; i++) {

    for (j = 0; j < nnodes; j++) {

      /* nothing to see, move along. */
      if (am[CMC(i, j, nnodes)] == 0)
        continue;

      /* whitelisted arcs are not to be removed, ever. */
      if (w[CMC(i, j, nnodes)] == 1)
        continue;

      /* retrieve the score delta from the cache. */
      temp = cache_value[CMC(i, j, nnodes)];

      if (debuglevel > 0) {

        Rprintf("  > trying to remove %s -> %s.\n", NODE(i), NODE(j));
        Rprintf("    > delta between scores for nodes %s %s is %lf.\n",
          NODE(i), NODE(j), temp);

      }/*THEN*/

      if (temp - max > tol) {

        if (debuglevel > 0)
          Rprintf("    @ removing %s -> %s.\n", NODE(i), NODE(j));

        /* update the return value. */
        bestop_update(bestop, "drop", NODE(i), NODE(j));
        /* store the node indices to update the reference scores. */
        from = i;
        to = j;

        /* update the threshold score delta. */
        max = temp;

      }/*THEN*/

    }/*FOR*/

  }/*FOR*/

  if (debuglevel > 0) {

     /* count how may arcs are to be tested. */
     for (i = 0, counter = 0; i < nnodes; i++)
       for (j = 0; j < nnodes; j++)
         counter += am[CMC(i, j, nnodes)] * (1 - b[CMC(j, i, nnodes)]);

     Rprintf("----------------------------------------------------------------\n");
     Rprintf("* trying to reverse one of %d arcs.\n", counter);

  }/*THEN*/

  for (i = 0; i < nnodes; i++) {

    for (j = 0; j < nnodes; j++) {

      /* nothing to see, move along. */
      if (am[CMC(i, j, nnodes)] == 0)
        continue;

      /* don't reverse an arc if the one in the opposite direction is
       * blacklisted, ever. */
      if (b[CMC(j, i, nnodes)] == 1)
        continue;

      /* do not reverse an arc if that means violating the limit on the
       * maximum number of parents. */
      if (np[i] >= *mp)
        continue;

      /* retrieve the score delta from the cache. */
      temp = cache_value[CMC(i, j, nnodes)] + cache_value[CMC(j, i, nnodes)];
      /* nuke small values and negative zeroes. */
      if (fabs(temp) < tol) temp = 0;

      if (debuglevel > 0) {

        Rprintf("  > trying to reverse %s -> %s.\n", NODE(i), NODE(j));
        Rprintf("    > delta between scores for nodes %s %s is %lf.\n",
          NODE(i), NODE(j), temp);

      }/*THEN*/

      if (temp - max > tol) {

        if (c_has_path(i, j, am, nnodes, nodes, FALSE, TRUE, path, scratch,
              FALSE)) {

          if (debuglevel > 0)
            Rprintf("    > not reversing, introduces cycles in the graph.\n");

          continue;

        }/*THEN*/

        if (debuglevel > 0)
          Rprintf("    @ reversing %s -> %s.\n", NODE(i), NODE(j));

        /* update the return value. */
        bestop_update(bestop, "reverse", NODE(i), NODE(j));
        /* store the node indices to update the reference scores. */
        from = i;
        to = j;
        /* both nodes' reference scores must be updated. */
        update = 2;

        /* update the threshold score delta. */
        max = temp;

      }/*THEN*/

    }/*FOR*/

  }/*FOR*/

  /* update the reference scores. */
  REAL(reference)[to] += cache_value[CMC(from, to, nnodes)];
  if (update == 2)
    REAL(reference)[from] += cache_value[CMC(to, from, nnodes)];

  Free1D(path);
  Free1D(scratch);

  UNPROTECT(1);

  return bestop;

}/*HC_OPT_STEP*/
Example #21
0
/* using thernau's habit: name a S object "charlie2" and the pointer
**  to the contents of the object "charlie"; the latter is
**  used in the computations
*/
SEXP netfastpinter(   SEXP   efac2,   SEXP edims2,
	      SEXP   ecut2,     SEXP   expect2,
	      SEXP   x2, 	SEXP   y2,SEXP ys2, SEXP status2,     SEXP times2) {
    int i,j,k;
    int     n,
	    edim,
	    ntime;
    double  **x;
    double  *data2, *si, *sitt;
    double  **ecut, *etemp;
    double  hazard, hazspi;						   /*cum hazard over an interval, also weigthed hazard */
    double     thiscell,
	    etime,
	    time,
	    et2;
    int   indx,
	    indx2;
    double  wt;

    int	    *efac, *edims, *status;
    double  *expect, *y,*ys, *times;
    SEXP      rlist, rlistnames;

	/*my declarations*/

    SEXP    yidli2, dnisi2,yisi2,yidlisi2,yi2,dni2,dnisisq2,yisitt2,yidlisitt2,yidlisiw2;
    double  *yidli, *dnisi,*yisi,*yidlisi,*yi,*dni,*dnisisq, *yisitt,*yidlisitt,*yidlisiw;


    /*
    ** copies of input arguments
    */

    efac  = INTEGER(efac2);
    edims = INTEGER(edims2);
    edim  = LENGTH(edims2);
    expect= REAL(expect2);


    n     = LENGTH(y2);									/*number of individuals */
    x     = dmatrix(REAL(x2), n, edim);
    y     = REAL(y2);									/*follow-up times*/
    ys	  = REAL(ys2);
    status = INTEGER(status2);								/* status */
    times = REAL(times2);
    ntime = LENGTH(times2);								/*length of times for reportint */

    /* scratch space */
    data2 = (double *)ALLOC(edim+1, sizeof(double));

    si = (double *)ALLOC(n, sizeof(double));			/*Si for each individual - this is a pointer, the values are called using s[i]*/
	sitt = (double *)ALLOC(n, sizeof(double));			/*Si at the beg. of the interval for each individual */
	/*
    ** Set up ecut index as a ragged array
    */
    ecut = (double **)ALLOC(edim, sizeof(double *));
    etemp = REAL(ecut2);
    for (i=0; i<edim; i++) {
	ecut[i] = etemp;
	if (efac[i]==0)     etemp += edims[i];
	else if(efac[i] >1) etemp += 1 + (efac[i]-1)*edims[i];
	}

    /*
    ** Create output arrays
    */

	PROTECT(yidli2 = allocVector(REALSXP, ntime));		/*sum Yi dLambdai for each time* - length=length(times2)*/
    yidli = REAL(yidli2);
	PROTECT(dnisi2 = allocVector(REALSXP, ntime));		/*sum dNi/Si for each time* - length=length(times2)*/
    dnisi = REAL(dnisi2);
    PROTECT(yisi2 = allocVector(REALSXP, ntime));		/*sum Yi/Si for each time* - length=length(times2)*/
    yisi = REAL(yisi2);
    PROTECT(yisitt2 = allocVector(REALSXP, ntime));		/*add tt*/
    yisitt = REAL(yisitt2);
    PROTECT(yidlisi2 = allocVector(REALSXP, ntime));		/*sum yi/Si dLambdai for each time* - length=length(times2)*/
    yidlisi = REAL(yidlisi2);
    PROTECT(yidlisitt2 = allocVector(REALSXP, ntime));		/*add tt*/
    yidlisitt = REAL(yidlisitt2);
    PROTECT(yidlisiw2 = allocVector(REALSXP, ntime));		/*add w*/
    yidlisiw = REAL(yidlisiw2);
	PROTECT(yi2 = allocVector(REALSXP, ntime));					/* sum yi at each time*/
    yi = REAL(yi2);
    PROTECT(dni2 = allocVector(REALSXP, ntime));		/*sum Yi dLambdai for each time* - length=length(times2)*/
    dni = REAL(dni2);
    PROTECT(dnisisq2 = allocVector(REALSXP, ntime));		/*sum yi/Si dLambdai for each time* - length=length(times2)*/
    dnisisq = REAL(dnisisq2);


 	/*initialize Si values*/
    for (i=0; i<n; i++) {
   	si[i] =1;
   	sitt[i] =1;
   	}


	/*initialize output values*/
    for (j=0; j<ntime; j++) {
	yidli[j] =0;
	dnisi[j] =0;
	yisi[j]=0;
	yisitt[j]=0;
	yidlisi[j]=0;
	yidlisitt[j]=0;
	yidlisiw[j]=0;
	yi[j]=0;
	dni[j]=0;
	dnisisq[j]=0;
	}

	time =0;
	for (j=0; j<ntime ; j++) {			/* loop in time */


    thiscell = times[j] - time;

    /* compute  for each individual*/
    for (i=0; i<n; i++) {
	if(y[i]>= times[j]){				// if still at risk
	/*
	** initialize
	*/
	for (k=0; k<edim; k++){
		data2[k] = x[k][i];						/* the individual's values of demographic variables at time 0 */
		if (efac[k] !=1) data2[k] += time;  /* add time to time changing variables */
	}

	/*
	** add up hazard
	*/


	    /* expected calc
	    **  The wt parameter only comes into play for older style US rate
	    **   tables, where pystep does interpolation.
	    ** Each call to pystep moves up to the next 'boundary' in the
	    **  expected table, data2 contains our current position therein
	    */
	    etime = thiscell;
	    hazard =0;
	    hazspi=0;					//integration of haz/si
	    while (etime >0) {
		et2 = pystep(edim, &indx, &indx2, &wt, data2, efac,
			     edims, ecut, etime, 1);
		hazspi+= et2* expect[indx]/(si[i]*exp(-hazard));		//add the integrated part
		if (wt <1) hazard+= et2*(wt*expect[indx] +(1-wt)*expect[indx2]);
		else       hazard+= et2* expect[indx];
		for (k=0; k<edim; k++)
		    if (efac[k] !=1) data2[k] += et2;
		etime -= et2;
		}
		sitt[i] = si[i];				// si at the beginning of the interval
		si[i] = si[i]* exp(-hazard);


		if(ys[i]<=times[j]){		// if start of observation before this time
			yisi[j]+=1/si[i];
			yisitt[j]+=1/sitt[i];
			yidlisi[j]+=hazard/si[i];
			yidlisitt[j]+=hazard/sitt[i];
			yidlisiw[j]+=hazspi;
			yidli[j]+=hazard;
			yi[j]+=1;
			if(y[i]==times[j]){
				dnisi[j]+=status[i]/si[i];
				dni[j]+=status[i];
				dnisisq[j]+=status[i]/(si[i]*si[i]);
			}	// if this person died at this time
		  } // if start of observation before this time
	   	  } // if still at risk
	    }// loop through individuals
	    time  += thiscell;
	}// loop through times

    /*
    ** package the output
    */
    PROTECT(rlist = allocVector(VECSXP, 10));					//number of variables
  	SET_VECTOR_ELT(rlist,0, dnisi2);
 	 SET_VECTOR_ELT(rlist,1, yisi2);
 	 SET_VECTOR_ELT(rlist,2, yidlisi2);
 	 SET_VECTOR_ELT(rlist,3, dnisisq2);
 	 SET_VECTOR_ELT(rlist,4, yi2);
 	 SET_VECTOR_ELT(rlist,5, dni2);
 	 SET_VECTOR_ELT(rlist,6, yidli2);
 	 SET_VECTOR_ELT(rlist,7, yisitt2);							/*added tt*/
	 SET_VECTOR_ELT(rlist,8, yidlisitt2);						/*added tt*/
	 SET_VECTOR_ELT(rlist,9, yidlisiw2);						/*added w*/




    PROTECT(rlistnames= allocVector(STRSXP, 10));					//number of variables
    SET_STRING_ELT(rlistnames, 0, mkChar("dnisi"));
    SET_STRING_ELT(rlistnames, 1, mkChar("yisi"));
    SET_STRING_ELT(rlistnames, 2, mkChar("yidlisi"));
 	SET_STRING_ELT(rlistnames, 3, mkChar("dnisisq"));
    SET_STRING_ELT(rlistnames, 4, mkChar("yi"));
    SET_STRING_ELT(rlistnames, 5, mkChar("dni"));
 	SET_STRING_ELT(rlistnames, 6, mkChar("yidli"));
    SET_STRING_ELT(rlistnames, 7, mkChar("yisitt"));				/*added tt*/
    SET_STRING_ELT(rlistnames, 8, mkChar("yidlisitt"));				/*added tt*/
    SET_STRING_ELT(rlistnames, 9, mkChar("yidlisiw"));				/*added w*/



    setAttrib(rlist, R_NamesSymbol, rlistnames);

    unprotect(12);					/*number of variables + 2*/
    return(rlist);
    }
Example #22
0
SEXP R_pncount(SEXP R_x, SEXP R_t, SEXP R_s, SEXP R_o, SEXP R_v) {
    int i, j, c, f, l, k, n, nr, np, ni, e;
    int *x, *o = NULL;
    double s, t = 0;
    SEXP px, ix, pt, it;
    SEXP r, pr, ir, pl, il, rs, rc, rl, pi; 
#ifdef _TIME_H
    clock_t t5, t4, t3, t2, t1, t0;

    t1 = t0 = clock();
    
    if (LOGICAL(R_v)[0] == TRUE) {
	if (LOGICAL(R_o)[0] == TRUE)
	    Rprintf("reducing ... ");
	else 
	    Rprintf("preparing ... ");
    }
#endif
    
    if (!inherits(R_x, "ngCMatrix"))
	error("'x' not of class ngCMatrix");
    if (!inherits(R_t, "ngCMatrix"))
	error("'t' not of class ngCMatrix");
    if (INTEGER(GET_SLOT(R_x, install("Dim")))[0] != 
	INTEGER(GET_SLOT(R_t, install("Dim")))[0])
	error("the number of rows of 'x' and 't' do not conform");
    if (TYPEOF(R_s) != LGLSXP)
	error("'s' not of type logical");
    if (TYPEOF(R_o) != LGLSXP)
	error("'o' not of type logical");
    if (TYPEOF(R_v) != LGLSXP)
	error("'v' not of type logical");
  
    nr = INTEGER(GET_SLOT(R_x, install("Dim")))[0];
    
    px = GET_SLOT(R_x, install("p"));
    ix = GET_SLOT(R_x, install("i"));

    pt = GET_SLOT(R_t, install("p"));
    it = GET_SLOT(R_t, install("i"));

    pb = INTEGER(PROTECT(allocVector(INTSXP, nr+1)));

    if (LOGICAL(R_o)[0] == TRUE) {
	SEXP pz, iz;

	o = INTEGER(PROTECT(allocVector(INTSXP, nr)));

	memset(o, 0, sizeof(int) * nr);
	
	for (k = 0; k < LENGTH(it); k++)
	    o[INTEGER(it)[k]]++;

	memset(pb, 0, sizeof(int) * nr);
	
	for (k = 0; k < LENGTH(ix); k++)
	    pb[INTEGER(ix)[k]] = 1;

	n = c = 0;
	for (k = 0; k < nr; k++) {
	    if (pb[k])
		n += o[k];
	    else {
		o[k] = -1;
		c++;
	    }
	    pb[k] = k;
	}
	
	R_qsort_int_I(o, pb, 1, nr);

	for (k = 0; k < nr; k++)
	    o[pb[k]] = (k < c) ? -1 : k;
	
	PROTECT(iz = allocVector(INTSXP, LENGTH(ix)));
	f = 0;
	for (i = 1; i < LENGTH(px); i++) {
	    l = INTEGER(px)[i];
	    if (f == l)
		continue;
	    for (k = f; k < l; k++)
		INTEGER(iz)[k] = o[INTEGER(ix)[k]];
	    R_isort(INTEGER(iz)+f, l-f);
	    f = l;
	}
	ix = iz;
	
	PROTECT(pz = allocVector(INTSXP, LENGTH(pt)));
	PROTECT(iz = allocVector(INTSXP, n));
	
	f = n = INTEGER(pz)[0] = 0;
	for (i = 1; i < LENGTH(pt); i++) {
	    l = INTEGER(pt)[i];
	    if (f < l) {
		for (k = f, f = n; k < l; k++)
		    if ((j = o[INTEGER(it)[k]]) > -1)
			INTEGER(iz)[n++] = j;
		R_isort(INTEGER(iz)+f, n-f);
		f = l;
	    }
	    INTEGER(pz)[i] = n;
	}
	pt = pz;
	ni = LENGTH(it);
	it = iz;
	
	if (LOGICAL(R_s)[0] == FALSE)
	    memcpy(o, pb, sizeof(int) * nr);

#ifdef _TIME_H
	t1 = clock();
	if (LOGICAL(R_v)[0] == TRUE) {
	    Rprintf("%i indexes, dropped %i (%.2f) items [%.2fs]\n", 
		    LENGTH(ix) + ni, c, 1 - (double) n / ni,
		    ((double) t1 - t0) / CLOCKS_PER_SEC);
	    Rprintf("preparing ... ");
	}
#endif
    }
    
    cpn = apn = npn = 0;

    if (nb != NULL)
        nbfree();
    nb = (PN **) malloc(sizeof(PN *) * (nr+1));
    if (nb == NULL)
        error("pointer array allocation failed");

    k = nr;
    nb[k] = NULL;
    while (k-- > 0)
	nb[k] = pnadd(nb[k+1], &k, 1);

    if (npn) {
	nbfree();
	error("node allocation failed");
    }
    
    np = ni = 0;
    
    f = 0;
    for (i = 1; i < LENGTH(px); i++) {
	l = INTEGER(px)[i];
	n = l-f;
	if (n == 0)
	    continue;
	x = INTEGER(ix)+f;
	pnadd(nb[*x], x, n);
	if (LOGICAL(R_s)[0] == FALSE && n > 1) {
	    if (n > 2) {
		memcpy(pb, x, sizeof(int) * n);
		for (k = 0; k < n-1; k++) {
		    if (k > 0) {
			j     = pb[0];
			pb[0] = pb[k];
			pb[k] = j;
		    }
		    pnadd(nb[pb[1]], pb+1, n-1);
		}
	    }
	    np += n;
	    ni += n * (n-1);
	}
	if (npn) {
	    nbfree();
	    error("node allocation failed");
	}
	f = l;
	R_CheckUserInterrupt();
    }

#ifdef _TIME_H
    t2 = clock();
    if (LOGICAL(R_v)[0] == TRUE) {
	Rprintf("%i itemsets, created %i (%.2f) nodes [%.2fs]\n",
		2 * np +  LENGTH(px) - 1, apn, (double) apn / cpn,
		((double) t2 - t1) / CLOCKS_PER_SEC);
	Rprintf("counting ... ");
    }
#endif
    
    cpn = npn = 0;

    f = 0;
    for (i = 1; i < LENGTH(pt); i++) {
	l = INTEGER(pt)[i];
	n = l-f;
	if (n == 0)
	    continue;
	x = INTEGER(it)+f;
	pncount(nb[*x], x, n);
	f = l;
	R_CheckUserInterrupt();
    }

#ifdef _TIME_H
    t3 = clock();
    if (LOGICAL(R_v)[0] == TRUE) {
	Rprintf("%i transactions, processed %i (%.2f) nodes [%.2fs]\n",
		LENGTH(pt) - 1, cpn, (double) npn / cpn, 
		((double) t3 - t2) / CLOCKS_PER_SEC);
	Rprintf("writing ... ");
    }
#endif
   
    if (LOGICAL(R_s)[0] == TRUE) {
	PROTECT(r = allocVector(INTSXP, LENGTH(px)-1));
	/* warnings */
	pl = il = pr = ir = rs = rc = rl = pi = (SEXP)0;
    } else {
	SEXP o, p;
	PROTECT(r = allocVector(VECSXP, 6));
	
	SET_VECTOR_ELT(r, 0, (o = NEW_OBJECT(MAKE_CLASS("ngCMatrix"))));
	SET_SLOT(o, install("p"),   (pl = allocVector(INTSXP, np+1)));
	SET_SLOT(o, install("i"),   (il = allocVector(INTSXP, ni)));
	SET_SLOT(o, install("Dim"), (p  = allocVector(INTSXP, 2)));
	INTEGER(p)[0] = nr;
	INTEGER(p)[1] = np;

	SET_VECTOR_ELT(r, 1, (o = NEW_OBJECT(MAKE_CLASS("ngCMatrix"))));
	SET_SLOT(o, install("p"),   (pr = allocVector(INTSXP, np+1)));
	SET_SLOT(o, install("i"),   (ir = allocVector(INTSXP, np)));
	SET_SLOT(o, install("Dim"), (p  = allocVector(INTSXP, 2)));
	INTEGER(p)[0] = nr;
	INTEGER(p)[1] = np;
	
	SET_VECTOR_ELT(r, 2, (rs = allocVector(REALSXP, np)));
	SET_VECTOR_ELT(r, 3, (rc = allocVector(REALSXP, np)));
	SET_VECTOR_ELT(r, 4, (rl = allocVector(REALSXP, np)));

	SET_VECTOR_ELT(r, 5, (pi = allocVector(INTSXP, np)));
	
	INTEGER(pl)[0] = INTEGER(pr)[0] = np = ni = 0;

	t = (double) LENGTH(pt)-1;
    }

    cpn = npn = 0;
   
    e = LENGTH(pt) - 1;
    f = 0;
    for (i = 1; i < LENGTH(px); i++) {
	l = INTEGER(px)[i];
	n = l-f;
	if (n == 0) {
	    if (LOGICAL(R_s)[0] == TRUE)
		INTEGER(r)[i-1] = e;
	    continue;
	}
	x = INTEGER(ix)+f;
	c = pnget(nb[*x], x, n);
	if (LOGICAL(R_s)[0] == TRUE)
	    INTEGER(r)[i-1] = c;
	else if (n > 1) {
	    s = c / t;
	    memcpy(pb, x, sizeof(int) * n);
	    for (k = 0; k < n; k++) {
		if (k > 0) {
		    j     = pb[0];
		    pb[0] = pb[k];
		    pb[k] = j;
		}
		INTEGER(pi)[np] = i;	    /* itemset index */
		
		REAL(rs)[np] = s;
		REAL(rc)[np] = c / (double)   pnget(nb[pb[1]], pb+1, n-1);
		REAL(rl)[np] = REAL(rc)[np] / pnget(nb[pb[0]], pb, 1) * t;
		
		INTEGER(ir)[np++] = pb[0];
		INTEGER(pr)[np]   = np;
		for (j = 1; j < n; j++)
		    INTEGER(il)[ni++] = pb[j];
		INTEGER(pl)[np] = ni;
	    }
	}
	f = l;
	R_CheckUserInterrupt();
    }
  
    nbfree();

    if (apn)
	error("node deallocation imbalance %i", apn);
    
#ifdef _TIME_H
    t4 = clock();

    if (LOGICAL(R_v)[0] == TRUE) {
	if (LOGICAL(R_s)[0] == FALSE)
	    Rprintf("%i rules, ", np);
	else
	    Rprintf("%i counts, ", LENGTH(px)-1);
	Rprintf("processed %i (%.2f) nodes [%.2fs]\n", cpn, (double) npn / cpn,
		((double) t4 - t3) / CLOCKS_PER_SEC);
    }
#endif

    if (LOGICAL(R_o)[0] == TRUE) {
	if (LOGICAL(R_s)[0] == FALSE) {
#ifdef _TIME_H
	    if (LOGICAL(R_v)[0] == TRUE)
		Rprintf("recoding ... ");
#endif	
	    f = 0;
	    for (i = 1; i < LENGTH(pl); i++) {
		l = INTEGER(pl)[i];
		if (f == l)
		    continue;
		for (k = f; k < l; k++)
		    INTEGER(il)[k] = o[INTEGER(il)[k]];
		R_isort(INTEGER(il)+f, l-f);
		f = l;
	    }
	    for (k = 0; k < LENGTH(ir); k++)
		INTEGER(ir)[k] = o[INTEGER(ir)[k]];

#ifdef _TIME_H
	    t5 = clock();
	    if (LOGICAL(R_v)[0] == TRUE)
		Rprintf(" %i indexes [%.2fs]\n", LENGTH(il) + LENGTH(ir), 
			((double) t5 - t4) / CLOCKS_PER_SEC);
#endif
	}
	UNPROTECT(6);
    }
    else
	UNPROTECT(2);

    return r;
}
Example #23
0
SEXP
R_ocr_boundingBoxes(SEXP filename, SEXP r_vars, SEXP r_level, SEXP r_names)
{
  SEXP ans = R_NilValue; 
  int i;

  tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI();
  if(api->Init(NULL, "eng")) {
     PROBLEM "could not intialize tesseract engine."	      
     ERROR;
  }
  Pix *image = pixRead(CHAR(STRING_ELT(filename, 0)));
  api->SetImage(image);

  SEXP r_optNames = GET_NAMES(r_vars);
  for(i = 0; i < Rf_length(r_vars); i++) 
      api->SetVariable(CHAR(STRING_ELT(r_optNames, i)), CHAR(STRING_ELT(r_vars, i)));


  api->Recognize(0);
  tesseract::ResultIterator* ri = api->GetIterator();
  tesseract::PageIteratorLevel level = (tesseract::PageIteratorLevel) INTEGER(r_level)[0];  //RIL_WORD;
  if(ri != 0) {

    int n = 1, i;
    while(ri->Next(level))   n++;

    ri = api->GetIterator();
    SEXP names, tmp;
    PROTECT(names = NEW_CHARACTER(n));
    PROTECT(ans = NEW_LIST(n));
    i = 0;
    int x1, y1, x2, y2;
    do {
      const char* word = ri->GetUTF8Text(level);
      float conf = ri->Confidence(level);

      ri->BoundingBox(level, &x1, &y1, &x2, &y2);
      SET_STRING_ELT(names, i, Rf_mkChar(word));
      SET_VECTOR_ELT(ans, i, tmp = NEW_NUMERIC(5));
      REAL(tmp)[0] = conf;
      REAL(tmp)[1] = x1;
      REAL(tmp)[2] = y1;
      REAL(tmp)[3] = x2;
      REAL(tmp)[4] = y2;

      SET_NAMES(tmp, r_names);

      delete[] word;
      i++;

    } while (ri->Next(level));

    SET_NAMES(ans, names);
    UNPROTECT(2);
  }

  pixDestroy(&image);

 return(ans);
}
Example #24
0
SEXP R_pnrindex(SEXP R_x, SEXP R_v) {
    int i, j, k, f, l, m, n, nr;
    int *x;
    SEXP px, ix;
    SEXP r, is, ir, il;
#ifdef _TIME_H
    clock_t t2, t1 = clock();
#endif
    
    if (!inherits(R_x, "ngCMatrix") && 
	!inherits(R_x, "sgCMatrix"))
        error("'x' not of class ngCMatrix");
    if (TYPEOF(R_v) != LGLSXP)
        error("'v' not of type logical");
#ifdef _TIME_H
    if (LOGICAL(R_v)[0] == TRUE) 
        Rprintf("processing ... ");
#endif
    nr = INTEGER(GET_SLOT(R_x, install("Dim")))[0];
    
    px = GET_SLOT(R_x, install("p"));
    ix = GET_SLOT(R_x, install("i"));

    cpn = apn = npn = 0;
    
    if (nb != NULL)
        nbfree();
    nb = (PN **) malloc(sizeof(PN *) * (nr+1));
    if (nb == NULL)
        error("pointer array allocation failed");

    k = nr;
    nb[k] = NULL;
    while (k-- > 0)
        nb[k] = pnadd(nb[k+1], &k, 1);

    if (npn) {
        nbfree();
        error("node allocation failed");
    }
  
    m = k = 0;
    
    f = 0;
    for (i = 1; i < LENGTH(px); i++) {
        l = INTEGER(px)[i];
        n = l-f;
        if (n == 0) 
            continue;
        x = INTEGER(ix)+f;
        pnadd(nb[*x], x, n);
        if (npn) {
            nbfree();
            error("node allocation failed");
        }
	if (nq->count == 0)
            nq->count = i;
	if (n > 1) 
	    m += n;
	if (n > k)
	    k = n;
        f = l;
        R_CheckUserInterrupt();
    }

    PROTECT(r = allocVector(VECSXP, 3));

    SET_VECTOR_ELT(r, 0, (is = allocVector(INTSXP, m)));
    SET_VECTOR_ELT(r, 1, (il = allocVector(INTSXP, m)));
    SET_VECTOR_ELT(r, 2, (ir = allocVector(INTSXP, m)));
  
    pb = INTEGER(PROTECT(allocVector(INTSXP, k+1)));

    cpn = npn = 0;

    m = 0;
    
    f = 0;
    for (i = 1; i < LENGTH(px); i++) {
	l = INTEGER(px)[i];
	n = l-f;
	if (n == 0)
	    continue;
	if (n > 1) {
	    x = INTEGER(ix)+f;
	    memcpy(pb, x, sizeof(int) * n);
	    for (k = 0; k < n; k++) {
		if (k > 0) {
		    j     = pb[0];
		    pb[0] = pb[k];
		    pb[k] = j;
		}
		INTEGER(is)[m] = i;
		INTEGER(il)[m] = pnget(nb[pb[1]], pb+1, n-1);
		INTEGER(ir)[m] = pnget(nb[pb[0]], pb, 1);
		m++;
	    }
	}
	f = l;
	R_CheckUserInterrupt();
    }

    nbfree();

    if (apn)
        error("node deallocation imbalance %i", apn);
#ifdef _TIME_H
    t2 = clock();
    if (LOGICAL(R_v)[0] == TRUE)
        Rprintf(" %i itemsets, %i rules [%.2fs]\n", LENGTH(px) - 1, m,
                ((double) t2-t1) / CLOCKS_PER_SEC);
#endif
    
    UNPROTECT(2);
 
    return r;
}
Example #25
0
SEXP attribute_hidden do_readDCF(SEXP call, SEXP op, SEXP args, SEXP env)
{
    int nwhat, nret, nc, nr, m, k, lastm, need;
    Rboolean blank_skip, field_skip = FALSE;
    int whatlen, dynwhat, buflen = 8096; // was 100, but that re-alloced often
    char *line, *buf;
    regex_t blankline, contline, trailblank, regline, eblankline;
    regmatch_t regmatch[1];
    SEXP file, what, what2, retval, retval2, dims, dimnames;
    Rconnection con = NULL;
    Rboolean wasopen, is_eblankline;
    RCNTXT cntxt;

    SEXP fold_excludes;
    Rboolean field_fold = TRUE, has_fold_excludes;
    const char *field_name;
    int offset = 0; /* -Wall */

    checkArity(op, args);

    file = CAR(args);
    con = getConnection(asInteger(file));
    wasopen = con->isopen;
    if(!wasopen) {
	if(!con->open(con)) error(_("cannot open the connection"));
	/* Set up a context which will close the connection on error */
	begincontext(&cntxt, CTXT_CCODE, R_NilValue, R_BaseEnv, R_BaseEnv,
		     R_NilValue, R_NilValue);
	cntxt.cend = &con_cleanup;
	cntxt.cenddata = con;
    }
    if(!con->canread) error(_("cannot read from this connection"));

    args = CDR(args);
    PROTECT(what = coerceVector(CAR(args), STRSXP)); /* argument fields */
    nwhat = LENGTH(what);
    dynwhat = (nwhat == 0);

    args = CDR(args);
    PROTECT(fold_excludes = coerceVector(CAR(args), STRSXP));
    has_fold_excludes = (LENGTH(fold_excludes) > 0);

    buf = (char *) malloc(buflen);
    if(!buf) error(_("could not allocate memory for 'read.dcf'"));
    nret = 20;
    /* it is easier if we first have a record per column */
    PROTECT(retval = allocMatrixNA(STRSXP, LENGTH(what), nret));

    /* These used to use [:blank:] but that can match \xa0 as part of
       a UTF-8 character (and is nbspace on Windows). */ 
    tre_regcomp(&blankline, "^[[:blank:]]*$", REG_NOSUB & REG_EXTENDED);
    tre_regcomp(&trailblank, "[ \t]+$", REG_EXTENDED);
    tre_regcomp(&contline, "^[[:blank:]]+", REG_EXTENDED);
    tre_regcomp(&regline, "^[^:]+:[[:blank:]]*", REG_EXTENDED);
    tre_regcomp(&eblankline, "^[[:space:]]+\\.[[:space:]]*$", REG_EXTENDED);

    k = 0;
    lastm = -1; /* index of the field currently being recorded */
    blank_skip = TRUE;
    void *vmax = vmaxget();
    while((line = Rconn_getline2(con))) {
	if(strlen(line) == 0 ||
	   tre_regexecb(&blankline, line, 0, 0, 0) == 0) {
	    /* A blank line.  The first one after a record ends a new
	     * record, subsequent ones are skipped */
	    if(!blank_skip) {
		k++;
		if(k > nret - 1){
		    nret *= 2;
		    PROTECT(retval2 = allocMatrixNA(STRSXP, LENGTH(what), nret));
		    transferVector(retval2, retval);
		    UNPROTECT_PTR(retval);
		    retval = retval2;
		}
		blank_skip = TRUE;
		lastm = -1;
		field_skip = FALSE;
		field_fold = TRUE;
	    }
	} else {
	    blank_skip = FALSE;
	    if(tre_regexecb(&contline, line, 1, regmatch, 0) == 0) {
		/* A continuation line: wrong if at the beginning of a
		   record. */
		if((lastm == -1) && !field_skip) {
		    line[20] = '\0';
		    error(_("Found continuation line starting '%s ...' at begin of record."),
			  line);
		}
		if(lastm >= 0) {
		    need = (int) strlen(CHAR(STRING_ELT(retval,
							lastm + nwhat * k))) + 2;
		    if(tre_regexecb(&eblankline, line, 0, NULL, 0) == 0) {
			is_eblankline = TRUE;
		    } else {
			is_eblankline = FALSE;
			if(field_fold) {
			    offset = regmatch[0].rm_eo;
			    /* Also remove trailing whitespace. */
			    if((tre_regexecb(&trailblank, line, 1,
					     regmatch, 0) == 0))
				line[regmatch[0].rm_so] = '\0';
			} else {
			    offset = 0;
			}
			need += (int) strlen(line + offset);
		    }
		    if(buflen < need) {
			char *tmp = (char *) realloc(buf, need);
			if(!tmp) {
			    free(buf);
			    error(_("could not allocate memory for 'read.dcf'"));
			} else buf = tmp;
			buflen = need;
		    }
		    strcpy(buf,CHAR(STRING_ELT(retval, lastm + nwhat * k)));
		    strcat(buf, "\n");
		    if(!is_eblankline) strcat(buf, line + offset);
		    SET_STRING_ELT(retval, lastm + nwhat * k, mkChar(buf));
		}
	    } else {
		if(tre_regexecb(&regline, line, 1, regmatch, 0) == 0) {
		    for(m = 0; m < nwhat; m++){
			whatlen = (int) strlen(CHAR(STRING_ELT(what, m)));
			if(strlen(line) > whatlen &&
			   line[whatlen] == ':' &&
			   strncmp(CHAR(STRING_ELT(what, m)),
				   line, whatlen) == 0) {
			    /* An already known field we are recording. */
			    lastm = m;
			    field_skip = FALSE;
			    field_name = CHAR(STRING_ELT(what, lastm));
			    if(has_fold_excludes) {
				field_fold =
				    field_is_foldable_p(field_name,
							fold_excludes);
			    }
			    if(field_fold) {
				offset = regmatch[0].rm_eo;
				/* Also remove trailing whitespace. */
				if((tre_regexecb(&trailblank, line, 1,
						 regmatch, 0) == 0))
				    line[regmatch[0].rm_so] = '\0';
			    } else {
				offset = 0;
			    }
			    SET_STRING_ELT(retval, m + nwhat * k,
					   mkChar(line + offset));
			    break;
			} else {
			    /* This is a field, but not one prespecified */
			    lastm = -1;
			    field_skip = TRUE;
			}
		    }
		    if(dynwhat && (lastm == -1)) {
			/* A previously unseen field and we are
			 * recording all fields */
			field_skip = FALSE;
			PROTECT(what2 = allocVector(STRSXP, nwhat+1));
			PROTECT(retval2 = allocMatrixNA(STRSXP,
							nrows(retval)+1,
							ncols(retval)));
			if(nwhat > 0) {
			    copyVector(what2, what);
			    for(nr = 0; nr < nrows(retval); nr++){
				for(nc = 0; nc < ncols(retval); nc++){
				    SET_STRING_ELT(retval2, nr+nc*nrows(retval2),
						   STRING_ELT(retval,
							      nr+nc*nrows(retval)));
				}
			    }
			}
			UNPROTECT_PTR(retval);
			UNPROTECT_PTR(what);
			retval = retval2;
			what = what2;
			/* Make sure enough space was used */
			need = (int) (Rf_strchr(line, ':') - line + 1);
			if(buflen < need){
			    char *tmp = (char *) realloc(buf, need);
			    if(!tmp) {
				free(buf);
				error(_("could not allocate memory for 'read.dcf'"));
			    } else buf = tmp;
			    buflen = need;
			}
			strncpy(buf, line, Rf_strchr(line, ':') - line);
			buf[Rf_strchr(line, ':') - line] = '\0';
			SET_STRING_ELT(what, nwhat, mkChar(buf));
			nwhat++;
			/* lastm uses C indexing, hence nwhat - 1 */
			lastm = nwhat - 1;
			field_name = CHAR(STRING_ELT(what, lastm));
			if(has_fold_excludes) {
			    field_fold =
				field_is_foldable_p(field_name,
						    fold_excludes);
			}
			offset = regmatch[0].rm_eo;
			if(field_fold) {
			    /* Also remove trailing whitespace. */
			    if((tre_regexecb(&trailblank, line, 1,
					     regmatch, 0) == 0))
				line[regmatch[0].rm_so] = '\0';
			}
			SET_STRING_ELT(retval, lastm + nwhat * k,
				       mkChar(line + offset));
		    }
		} else {
		    /* Must be a regular line with no tag ... */
		    line[20] = '\0';
		    error(_("Line starting '%s ...' is malformed!"), line);
		}
	    }
	}
    }
    vmaxset(vmax);
    if(!wasopen) {endcontext(&cntxt); con->close(con);}
    free(buf);
    tre_regfree(&blankline);
    tre_regfree(&contline);
    tre_regfree(&trailblank);
    tre_regfree(&regline);
    tre_regfree(&eblankline);

    if(!blank_skip) k++;

    /* and now transpose the whole matrix */
    PROTECT(retval2 = allocMatrixNA(STRSXP, k, LENGTH(what)));
    copyMatrix(retval2, retval, 1);

    PROTECT(dimnames = allocVector(VECSXP, 2));
    PROTECT(dims = allocVector(INTSXP, 2));
    INTEGER(dims)[0] = k;
    INTEGER(dims)[1] = LENGTH(what);
    SET_VECTOR_ELT(dimnames, 1, what);
    setAttrib(retval2, R_DimSymbol, dims);
    setAttrib(retval2, R_DimNamesSymbol, dimnames);
    UNPROTECT(6);
    return(retval2);
}
Example #26
0
/*
 * Given nx x values, ny y values, nx*ny z values,
 * and nl cut-values in z ...
 * ... produce a list of contour lines:
 *   list of sub-lists
 *     sub-list = x vector, y vector, and cut-value.
 */
SEXP GEcontourLines(double *x, int nx, double *y, int ny,
		    double *z, double *levels, int nl)
{
    const void *vmax;
    int i, nlines, len;
    double atom, zmin, zmax;
    SEGP* segmentDB;
    SEXP container, mainlist, templist;
    /*
     * "tie-breaker" values
     */
    zmin = DBL_MAX;
    zmax = DBL_MIN;
    for (i = 0; i < nx * ny; i++)
	if (R_FINITE(z[i])) {
	    if (zmax < z[i]) zmax =  z[i];
	    if (zmin > z[i]) zmin =  z[i];
	}

    if (zmin >= zmax) {
	if (zmin == zmax)
	    warning(_("all z values are equal"));
	else
	    warning(_("all z values are NA"));
	return R_NilValue;
    }
    /* change to 1e-3, reconsidered because of PR#897
     * but 1e-7, and even  2*DBL_EPSILON do not prevent inf.loop in contour().
     * maybe something like   16 * DBL_EPSILON * (..).
     * see also max_contour_segments above */
    atom = 1e-3 * (zmax - zmin);
    /*
     * Create a "container" which is a list with only 1 element.
     * The element is the list of lines that will be built up.
     * I create the container because this allows me to PROTECT
     * the container once here and then UNPROTECT it at the end of
     * this function and, as long as I always work with
     * VECTOR_ELT(container, 0) and SET_VECTOR_ELT(container, 0)
     * in functions called from here, I don't need to worry about
     * protectin the list that I am building up.
     * Why bother?  Because the list I am building can potentially
     * grow and it's awkward to get the PROTECTs/UNPROTECTs right
     * when you're in a loop and growing a list.
     */
    container = PROTECT(allocVector(VECSXP, 1));
    /*
     * Create "large" list (will trim excess at the end if necesary)
     */
    SET_VECTOR_ELT(container, 0, allocVector(VECSXP, CONTOUR_LIST_STEP));
    nlines = 0;
    /*
     * Add lines for each contour level
     */
    for (i = 0; i < nl; i++) {
	/*
	 * The vmaxget/set is to manage the memory that gets
	 * R_alloc'ed in the creation of the segmentDB structure
	 */
	vmax = vmaxget();
	/*
	 * Generate a segment database
	 */
	segmentDB = contourLines(x, nx, y, ny, z, levels[i], atom);
	/*
	 * Add lines to the list based on the segment database
	 */
	nlines = addContourLines(x, nx, y, ny, z, levels[i],
				 atom, segmentDB, nlines,
				 container);
	vmaxset(vmax);
    }
    /*
     * Trim the list of lines to the appropriate length.
     */
    len = LENGTH(VECTOR_ELT(container, 0));
    if (nlines < len) {
	mainlist = VECTOR_ELT(container, 0);
	templist = PROTECT(allocVector(VECSXP, nlines));
	for (i=0; i<nlines; i++)
	    SET_VECTOR_ELT(templist, i, VECTOR_ELT(mainlist, i));
	mainlist = templist;
	UNPROTECT(1);  /* UNPROTECT templist */
    } else
	mainlist = VECTOR_ELT(container, 0);
    UNPROTECT(1);  /* UNPROTECT container */
    return mainlist;
}
Example #27
0
SEXP transpose(SEXP l, SEXP fill, SEXP ignoreArg) {

  R_len_t i, j, k=0, maxlen=0, zerolen=0, anslen;
  SEXP li, thisi, ans;
  SEXPTYPE type, maxtype=0;
  Rboolean coerce = FALSE;

  if (!isNewList(l))
    error("l must be a list.");
  if (!length(l))
    return(duplicate(l));
  if (!isLogical(ignoreArg) || LOGICAL(ignoreArg)[0] == NA_LOGICAL)
    error("ignore.empty should be logical TRUE/FALSE.");
  if (length(fill) != 1)
    error("fill must be NULL or length=1 vector.");
  R_len_t ln = LENGTH(l);
  Rboolean ignore = LOGICAL(ignoreArg)[0];

  // preprocessing
  R_len_t *len  = (R_len_t *)R_alloc(ln, sizeof(R_len_t));
  for (i=0; i<ln; i++) {
    li = VECTOR_ELT(l, i);
    if (!isVectorAtomic(li) && !isNull(li))
      error("Item %d of list input is not an atomic vector", i+1);
    len[i] = length(li);
    if (len[i] > maxlen)
      maxlen = len[i];
    zerolen += (len[i] == 0);
    if (isFactor(li)) {
      maxtype = STRSXP;
    } else {
      type = TYPEOF(li);
      if (type > maxtype)
        maxtype = type;
    }
  }
  // coerce fill to maxtype
  fill = PROTECT(coerceVector(fill, maxtype));

  // allocate 'ans'
  ans = PROTECT(allocVector(VECSXP, maxlen));
  anslen = (!ignore) ? ln : (ln - zerolen);
  for (i=0; i<maxlen; i++) {
    SET_VECTOR_ELT(ans, i, thisi=allocVector(maxtype, anslen) );
  }

  // transpose
  for (i=0; i<ln; i++) {
    if (ignore && !len[i]) continue;
    li = VECTOR_ELT(l, i);
    if (TYPEOF(li) != maxtype) {
      coerce = TRUE;
      if (!isFactor(li)) li = PROTECT(coerceVector(li, maxtype));
      else li = PROTECT(asCharacterFactor(li));
    }
    switch (maxtype) {
    case INTSXP :
      for (j=0; j<maxlen; j++) {
        thisi = VECTOR_ELT(ans, j);
        INTEGER(thisi)[k] = (j < len[i]) ? INTEGER(li)[j] : INTEGER(fill)[0];
      }
      break;
    case LGLSXP :
      for (j=0; j<maxlen; j++) {
        thisi = VECTOR_ELT(ans, j);
        LOGICAL(thisi)[k] = (j < len[i]) ? LOGICAL(li)[j] : LOGICAL(fill)[0];
      }
      break;
    case REALSXP :
      for (j=0; j<maxlen; j++) {
        thisi = VECTOR_ELT(ans, j);
        REAL(thisi)[k] = (j < len[i]) ? REAL(li)[j] : REAL(fill)[0];
      }
      break;
    case STRSXP :
      for (j=0; j<maxlen; j++) {
        thisi = VECTOR_ELT(ans, j);
        SET_STRING_ELT(thisi, k, (j < len[i]) ? STRING_ELT(li, j) : STRING_ELT(fill, 0));
      }
      break;
    default :
        error("Unsupported column type '%s'", type2char(maxtype));
    }
    if (coerce) {
      coerce = FALSE;
      UNPROTECT(1);
    }
    k++;
  }
  UNPROTECT(2);
  return(ans);
}
Example #28
0
/*
 * Store the list of segments for a single level in the SEXP
 * list that will be returned to the user
 */
static
int addContourLines(double *x, int nx, double *y, int ny,
		     double *z, double zc, double atom,
		     SEGP* segmentDB, int nlines, SEXP container)
{
    double xend, yend;
    int i, ii, j, jj, ns, dir, nc;
    SEGP seglist, seg, s, start, end;
    SEXP ctr, level, xsxp, ysxp, names;
    /* Begin following contours. */
    /* 1. Grab a segment */
    /* 2. Follow its tail */
    /* 3. Follow its head */
    /* 4. Save the contour */
    for (i = 0; i < nx - 1; i++)
	for (j = 0; j < ny - 1; j++) {
	    while ((seglist = segmentDB[i + j * nx])) {
		ii = i; jj = j;
		start = end = seglist;
		segmentDB[i + j * nx] = seglist->next;
		xend = seglist->x1;
		yend = seglist->y1;
		while ((dir = ctr_segdir(xend, yend, x, y,
					 &ii, &jj, nx, ny))) {
		    segmentDB[ii + jj * nx]
			= ctr_segupdate(xend, yend, dir, TRUE,/* = tail */
					segmentDB[ii + jj * nx], &seg);
		    if (!seg) break;
		    end->next = seg;
		    end = seg;
		    xend = end->x1;
		    yend = end->y1;
		}
		end->next = NULL; /* <<< new for 1.2.3 */
		ii = i; jj = j;
		xend = seglist->x0;
		yend = seglist->y0;
		while ((dir = ctr_segdir(xend, yend, x, y,
					 &ii, &jj, nx, ny))) {
		    segmentDB[ii + jj * nx]
			= ctr_segupdate(xend, yend, dir, FALSE,/* ie. head */
					segmentDB[ii+jj*nx], &seg);
		    if (!seg) break;
		    seg->next = start;
		    start = seg;
		    xend = start->x0;
		    yend = start->y0;
		}

		/* ns := #{segments of polyline} -- need to allocate */
		s = start;
		ns = 0;
		/* max_contour_segments: prevent inf.loop (shouldn't be needed) */
		while (s && ns < max_contour_segments) {
		    ns++;
		    s = s->next;
		}
		if(ns == max_contour_segments)
		    warning(_("contour(): circular/long seglist -- set %s > %d?"), 
		            "options(\"max.contour.segments\")", max_contour_segments);
		/*
		 * "write" the contour locations into the list of contours
		 */
		ctr = PROTECT(allocVector(VECSXP, 3));
		level = PROTECT(allocVector(REALSXP, 1));
		xsxp = PROTECT(allocVector(REALSXP, ns + 1));
		ysxp = PROTECT(allocVector(REALSXP, ns + 1));
		REAL(level)[0] = zc;
		SET_VECTOR_ELT(ctr, CONTOUR_LIST_LEVEL, level);
		s = start;
		REAL(xsxp)[0] = s->x0;
		REAL(ysxp)[0] = s->y0;
		ns = 1;
		while (s->next && ns < max_contour_segments) {
		    s = s->next;
		    REAL(xsxp)[ns] = s->x0;
		    REAL(ysxp)[ns++] = s->y0;
		}
		REAL(xsxp)[ns] = s->x1;
		REAL(ysxp)[ns] = s->y1;
		SET_VECTOR_ELT(ctr, CONTOUR_LIST_X, xsxp);
		SET_VECTOR_ELT(ctr, CONTOUR_LIST_Y, ysxp);
		/*
		 * Set the names attribute for the contour
		 * So that users can extract components using
		 * meaningful names
		 */
		PROTECT(names = allocVector(STRSXP, 3));
		SET_STRING_ELT(names, 0, mkChar("level"));
		SET_STRING_ELT(names, 1, mkChar("x"));
		SET_STRING_ELT(names, 2, mkChar("y"));
		setAttrib(ctr, R_NamesSymbol, names);
		/*
		 * We're about to add another line to the list ...
		 */
		nlines += 1;
		nc = LENGTH(VECTOR_ELT(container, 0));
		if (nlines == nc)
		    /* Where does this get UNPROTECTed? */
		    SET_VECTOR_ELT(container, 0,
				   growList(VECTOR_ELT(container, 0)));
		SET_VECTOR_ELT(VECTOR_ELT(container, 0), nlines - 1, ctr);
		UNPROTECT(5);
	    }
	}
    return nlines;
}
Example #29
0
SEXP SP_PREFIX(comment2comm)(SEXP obj) {
    SEXP ans, comment;
    int pc=0, ns, i, j, jj, k, nc;
    char s[15], *buf;
    int *c, *nss, *co, *coo;

    PROTECT(comment = getAttrib(obj, install("comment"))); pc++;
    if (comment == R_NilValue) {
        UNPROTECT(pc);
        return(R_NilValue);
    }

    nc = length(STRING_ELT(comment, 0));
    if (nc < 1) error("comment2comm: empty string comment");

    buf = (char *) R_alloc((size_t) (nc+1), sizeof(char));

    strcpy(buf, CHAR(STRING_ELT(comment, 0)));

    i = 0;
    ns = 0;
    while (buf[i] != '\0') {
        if (buf[i] == ' ') ns++;
        i++;
    }
    k = (int) strlen(buf);

   
    nss = (int *) R_alloc((size_t) (ns+1), sizeof(int));
    c = (int *) R_alloc((size_t) (ns+1), sizeof(int));
    i = 0;
    j = 0;
    while (buf[i] != '\0') {
        if (buf[i] == ' ') {
            nss[j] = i; j++;
        }
        i++;
    }
    nss[(ns)] = k;

    s[0] = '\0';
    if (nss[0] > 15) error("comment2comm: buffer overflow");
    strncpy(s, &buf[0], (size_t) nss[0]);
    s[nss[0]] = '\0';

    c[0] = atoi(s);
    for (i=0; i<ns; i++) {
        k = nss[(i+1)]-(nss[i]+1);
        if (k > 15) error("comment2comm: buffer overflow");
        strncpy(s, &buf[(nss[i]+1)], (size_t) k);
        s[k] = '\0';
        c[i+1] = atoi(s);
    }

    for (i=0, k=0; i<(ns+1); i++) if (c[i] == 0) k++;
    
    PROTECT(ans = NEW_LIST((k))); pc++;
    co = (int *) R_alloc((size_t) k, sizeof(int));
    coo = (int *) R_alloc((size_t) k, sizeof(int));
    for (i=0; i<k; i++) co[i] = 1;

    for (i=0, j=0; i<(ns+1); i++)
        if (c[i] == 0) coo[j++] = i + R_OFFSET;

    for (i=0; i<k; i++)
        for (j=0; j<(ns+1); j++)
            if ((c[j]) == coo[i]) co[i]++;

    for (i=0; i<k; i++) SET_VECTOR_ELT(ans, i, NEW_INTEGER(co[i]));

    for (i=0; i<k; i++) {
        jj = 0;
        INTEGER_POINTER(VECTOR_ELT(ans, i))[jj++] = coo[i];
        if (co[i] > 1) {
            for (j=0; j<(ns+1); j++)
                if (c[j] == coo[i])
                    INTEGER_POINTER(VECTOR_ELT(ans, i))[jj++] = j + R_OFFSET;
        }
    }

    UNPROTECT(pc);
    return(ans);
}
Example #30
0
/* The idea is to produce a transformation for this viewport which
 * will take any location in INCHES and turn it into a location on the 
 * Device in INCHES.
 * The reason for working in INCHES is because we want to be able to
 * do rotations as part of the transformation.
 * If "incremental" is true, then we just work from the "current"
 * values of the parent.  Otherwise, we have to recurse and recalculate
 * everything from scratch.
 */
void calcViewportTransform(SEXP vp, SEXP parent, Rboolean incremental,
			   pGEDevDesc dd)
{
    int i, j;
    double vpWidthCM, vpHeightCM, rotationAngle;
    double parentWidthCM, parentHeightCM;
    double xINCHES, yINCHES;
    double xadj, yadj;
    double parentAngle;
    LViewportLocation vpl;
    LViewportContext vpc, parentContext;
    R_GE_gcontext gc, parentgc;
    LTransform thisLocation, thisRotation, thisJustification, thisTransform;
    LTransform tempTransform, parentTransform, transform;
    SEXP currentWidthCM, currentHeightCM, currentRotation;
    SEXP currentTransform;
    /* This should never be true when we are doing an incremental
     * calculation
     */
    if (isNull(parent)) {
	/* We have a top-level viewport; the parent is the device
	 */
	getDeviceSize(dd, &parentWidthCM, &parentHeightCM);
	/* For a device the transform is the identity transform
	 */
	identity(parentTransform);
	/* For a device, xmin=0, ymin=0, xmax=1, ymax=1, and
	 */
	parentContext.xscalemin = 0;
	parentContext.yscalemin = 0;
	parentContext.xscalemax = 1;
	parentContext.yscalemax = 1;
	/* FIXME:  How do I figure out the device fontsize ?
	 * From ps.options etc, ... ?
	 * FIXME:  How do I figure out the device lineheight ??
	 * FIXME:  How do I figure out the device cex ??
	 * FIXME:  How do I figure out the device font ??
	 * FIXME:  How do I figure out the device fontfamily ??
	 */
	parentgc.ps = 10;
	parentgc.lineheight = 1.2;
	parentgc.cex = 1;
	parentgc.fontface = 1;
	parentgc.fontfamily[0] = '\0';
	/* The device is not rotated
	 */
	parentAngle = 0;
	fillViewportLocationFromViewport(vp, &vpl);
    } else {
	/* Get parent transform (etc ...)
	 * If necessary, recalculate the parent transform (etc ...)
	 */
	if (!incremental)
	    calcViewportTransform(parent, viewportParent(parent), 0, dd);
	/* Get information required to transform viewport location
	 */
	parentWidthCM = REAL(viewportWidthCM(parent))[0];
	parentHeightCM = REAL(viewportHeightCM(parent))[0];
	parentAngle = REAL(viewportRotation(parent))[0];
	for (i=0; i<3; i++)
	    for (j=0; j<3; j++)
		parentTransform[i][j] = 
		    REAL(viewportTransform(parent))[i +3*j];
	fillViewportContextFromViewport(parent, &parentContext);
	/* 
	 * Don't get gcontext from parent because the most recent
	 * previous gpar setting may have come from a gTree
	 * So we look at this viewport's parentgpar slot instead
	 * 
	 * WAS gcontextFromViewport(parent, &parentgc);
	 */
	gcontextFromgpar(viewportParentGPar(vp), 0, &parentgc, dd);
	/* In order for the vp to get its vpl from a layout
	 * it must have specified a layout.pos and the parent
	 * must have a layout
	 * FIXME:  Actually, in addition, layout.pos.row and
	 * layout.pos.col must be valid for the layout
	 */
	if ((isNull(viewportLayoutPosRow(vp)) && 
	     isNull(viewportLayoutPosCol(vp))) ||
	    isNull(viewportLayout(parent)))
	    fillViewportLocationFromViewport(vp, &vpl);
	else if (checkPosRowPosCol(vp, parent))
	    calcViewportLocationFromLayout(viewportLayoutPosRow(vp),
					   viewportLayoutPosCol(vp),
					   parent,
					   &vpl);
    }
    /* NOTE that we are not doing a transformLocn here because
     * we just want locations and dimensions (in INCHES) relative to 
     * the parent, NOT relative to the device.
     */
    /* First, convert the location of the viewport into CM
     */
    xINCHES = transformXtoINCHES(vpl.x, 0, parentContext, &parentgc,
				 parentWidthCM, parentHeightCM, 
				 dd);
    yINCHES = transformYtoINCHES(vpl.y, 0, parentContext, &parentgc,
				 parentWidthCM, parentHeightCM, 
				 dd);
    /* Calculate the width and height of the viewport in CM too
     * so that any viewports within this one can do transformations
     */
    vpWidthCM = transformWidthtoINCHES(vpl.width, 0, parentContext, &parentgc,
				       parentWidthCM, parentHeightCM,
				       dd)*2.54;
    vpHeightCM = transformHeighttoINCHES(vpl.height, 0, parentContext, 
					 &parentgc,
					 parentWidthCM, 
					 parentHeightCM, 
					 dd)*2.54;
    /* Fall out if location or size are non-finite
     */
    if (!R_FINITE(xINCHES) || 
	!R_FINITE(yINCHES) || 
	!R_FINITE(vpWidthCM) || 
	!R_FINITE(vpHeightCM))
	error(_("Non-finite location and/or size for viewport"));
    /* Determine justification required
     */
    justification(vpWidthCM, vpHeightCM, vpl.hjust, vpl.vjust,
		  &xadj, &yadj);
    /* Next, produce the transformation to add the location of
     * the viewport to the location.
     */
    /* Produce transform for this viewport
     */
    translation(xINCHES, yINCHES, thisLocation);
    if (viewportAngle(vp) != 0)
	rotation(viewportAngle(vp), thisRotation);
    else
	identity(thisRotation);
    translation(xadj/2.54, yadj/2.54, thisJustification);
    /* Position relative to origin of rotation THEN rotate.
     */
    multiply(thisJustification, thisRotation, tempTransform);
    /* Translate to bottom-left corner.
     */
    multiply(tempTransform, thisLocation, thisTransform);
    /* Combine with parent's transform
     */
    multiply(thisTransform, parentTransform, transform);
    /* Sum up the rotation angles
     */
    rotationAngle = parentAngle + viewportAngle(vp);
    /* Finally, allocate the rows and columns for this viewport's
     * layout if it has one
     */
    if (!isNull(viewportLayout(vp))) {
	fillViewportContextFromViewport(vp, &vpc);
	gcontextFromViewport(vp, &gc, dd);
	calcViewportLayout(vp, vpWidthCM, vpHeightCM, vpc, &gc, dd);
    }
    /* Record all of the answers in the viewport
     * (the layout calculations are done within calcViewportLayout)
     */
    PROTECT(currentWidthCM = ScalarReal(vpWidthCM));
    PROTECT(currentHeightCM = ScalarReal(vpHeightCM));
    PROTECT(currentRotation = ScalarReal(rotationAngle));
    PROTECT(currentTransform = allocMatrix(REALSXP, 3, 3));
    for (i=0; i<3; i++)
	for (j=0; j<3; j++)
	    REAL(currentTransform)[i + 3*j] = transform[i][j];
    SET_VECTOR_ELT(vp, PVP_WIDTHCM, currentWidthCM);
    SET_VECTOR_ELT(vp, PVP_HEIGHTCM, currentHeightCM);
    SET_VECTOR_ELT(vp, PVP_ROTATION, currentRotation);
    SET_VECTOR_ELT(vp, PVP_TRANS, currentTransform);
    UNPROTECT(4);
}