void crossover(Chrs **dyad,int numWordGroup,Words *word,int minSpaceWidth,int maxSpaceWidth, Wheel *wheel,int populationSize,Fitness *fitness,char *motifUniq,double *maxpFactor,double maxpMutationRate) { register int i,j; int found,id1,id2,popuCn; double *tmpmaxpFactor; Chrs **tmpDyad; double rand,du,newFactor; tmpDyad=alloc_chrs(populationSize,4); tmpmaxpFactor=alloc_double(populationSize); // save a copy of all unique top-ranked spaced dyads popuCn=0; for (i=0; i<populationSize; i++) { if (motifUniq[i]=='1') { for (j=0; j<3; j++) { tmpDyad[popuCn][j].wordID =dyad[fitness[i].index][j].wordID; tmpDyad[popuCn][j].wordGroup=dyad[fitness[i].index][j].wordGroup; } tmpmaxpFactor[popuCn]=maxpFactor[fitness[i].index]; popuCn++; } } // crossover while (popuCn<populationSize) { do { // select the first dyad du=(double)populationSize*genrand(); found=0; id1=0; id2=0; for (j=0; j<populationSize; j++) { if (du>=wheel[j].start && du<=wheel[j].end) { id1=wheel[j].index; found=1; break; } } if (!found) { id1=(int)(populationSize*genrand()); if (id1==populationSize) id1--; } // select the second dyad du=(double)populationSize*genrand(); found=0; for (j=0; j<populationSize; j++) { if (du>=wheel[j].start && du<=wheel[j].end) { id2=wheel[j].index; found=1; break; } } if (!found) { id2=(int)(populationSize*genrand()); if (id2==populationSize) id2--; } // printf("id1 id2: %d %d\n",id1,id2); } while (id1==id2); // do not pick the same "chromosome" if (genrand()<maxpMutationRate) { // if change maxp factor other than crossing over the dyads do { newFactor=MAXP_BASE+MAXP_FACTOR*((int)(MAXP_SCALE*genrand())); } while (fabs(newFactor-maxpFactor[id1])<0.001); tmpmaxpFactor[popuCn]=newFactor; tmpDyad[popuCn][0].wordID =dyad[id1][0].wordID; tmpDyad[popuCn][1].wordID =dyad[id1][1].wordID; tmpDyad[popuCn][2].wordID =dyad[id1][2].wordID; tmpDyad[popuCn][0].wordGroup=dyad[id1][0].wordGroup; tmpDyad[popuCn][1].wordGroup=dyad[id1][1].wordGroup; tmpDyad[popuCn][2].wordGroup=dyad[id1][2].wordGroup; popuCn++; if (popuCn==populationSize) break; do { newFactor=MAXP_BASE+MAXP_FACTOR*((int)(MAXP_SCALE*genrand())); } while (fabs(newFactor-maxpFactor[id2])<0.001); tmpmaxpFactor[popuCn]=newFactor; tmpDyad[popuCn][0].wordID =dyad[id2][0].wordID; tmpDyad[popuCn][1].wordID =dyad[id2][1].wordID; tmpDyad[popuCn][2].wordID =dyad[id2][2].wordID; tmpDyad[popuCn][0].wordGroup=dyad[id2][0].wordGroup; tmpDyad[popuCn][1].wordGroup=dyad[id2][1].wordGroup; tmpDyad[popuCn][2].wordGroup=dyad[id2][2].wordGroup; popuCn++; if (popuCn==populationSize) break; } else { rand=genrand(); if (rand>=0 && rand<1/3) { // replace w1 of dyad1 by w1 of dyad2 tmpDyad[popuCn][0].wordID =dyad[id2][0].wordID; // replacement tmpDyad[popuCn][1].wordID =dyad[id1][1].wordID; tmpDyad[popuCn][2].wordID =dyad[id1][2].wordID; tmpDyad[popuCn][0].wordGroup=dyad[id2][0].wordGroup; // replacement tmpDyad[popuCn][1].wordGroup=dyad[id1][1].wordGroup; tmpDyad[popuCn][2].wordGroup=dyad[id1][2].wordGroup; tmpmaxpFactor[popuCn]=maxpFactor[id1]; popuCn++; if (popuCn==populationSize) break; // replace w1 of dyad2 by w1 of dyad1 tmpDyad[popuCn][0].wordID =dyad[id1][0].wordID; // replacement tmpDyad[popuCn][1].wordID =dyad[id2][1].wordID; tmpDyad[popuCn][2].wordID =dyad[id2][2].wordID; tmpDyad[popuCn][0].wordGroup=dyad[id1][0].wordGroup; // replacement tmpDyad[popuCn][1].wordGroup=dyad[id2][1].wordGroup; tmpDyad[popuCn][2].wordGroup=dyad[id2][2].wordGroup; tmpmaxpFactor[popuCn]=maxpFactor[id2]; popuCn++; if (popuCn==populationSize) break; } else if (rand>=1/3 && rand<2/3) { // replace spacer of dyad1 by spacer of dyad2 tmpDyad[popuCn][0].wordID =dyad[id1][0].wordID; tmpDyad[popuCn][1].wordID =dyad[id2][1].wordID; // replacement tmpDyad[popuCn][2].wordID =dyad[id1][2].wordID; tmpDyad[popuCn][0].wordGroup=dyad[id1][0].wordGroup; tmpDyad[popuCn][1].wordGroup=dyad[id2][1].wordGroup; // replacement tmpDyad[popuCn][2].wordGroup=dyad[id1][2].wordGroup; tmpmaxpFactor[popuCn]=maxpFactor[id1]; popuCn++; if (popuCn==populationSize) break; // replace spacer dyad2 by spacer of dyad1 tmpDyad[popuCn][0].wordID =dyad[id2][0].wordID; tmpDyad[popuCn][1].wordID =dyad[id1][1].wordID; // replacement tmpDyad[popuCn][2].wordID =dyad[id2][2].wordID; tmpDyad[popuCn][0].wordGroup=dyad[id2][0].wordGroup; tmpDyad[popuCn][1].wordGroup=dyad[id1][1].wordGroup; // replacement tmpDyad[popuCn][2].wordGroup=dyad[id2][2].wordGroup; tmpmaxpFactor[popuCn]=maxpFactor[id2]; popuCn++; if (popuCn==populationSize) break; } else { // replace w2 of dyad1 by w2 of dyad2 tmpDyad[popuCn][0].wordID =dyad[id1][0].wordID; tmpDyad[popuCn][1].wordID =dyad[id1][1].wordID; tmpDyad[popuCn][2].wordID =dyad[id2][2].wordID; // replacement tmpDyad[popuCn][0].wordGroup=dyad[id1][0].wordGroup; tmpDyad[popuCn][1].wordGroup=dyad[id1][1].wordGroup; tmpDyad[popuCn][2].wordGroup=dyad[id2][2].wordGroup; // replacement tmpmaxpFactor[popuCn]=maxpFactor[id1]; popuCn++; if (popuCn==populationSize) break; // replace w2 of dyad2 by w2 of dyad1 tmpDyad[popuCn][0].wordID =dyad[id2][0].wordID; tmpDyad[popuCn][1].wordID =dyad[id2][1].wordID; tmpDyad[popuCn][2].wordID =dyad[id1][2].wordID; // replacement tmpDyad[popuCn][0].wordGroup=dyad[id2][0].wordGroup; tmpDyad[popuCn][1].wordGroup=dyad[id2][1].wordGroup; tmpDyad[popuCn][2].wordGroup=dyad[id1][2].wordGroup; // replacement tmpmaxpFactor[popuCn]=maxpFactor[id2]; popuCn++; if (popuCn==populationSize) break; } } // printf("popuCn: %d\n",popuCn); } // update the population - both pwm lengths and members for (i=0; i<populationSize; i++) { for (j=0; j<3; j++) { dyad[i][j].wordID =tmpDyad[i][j].wordID; dyad[i][j].wordGroup=tmpDyad[i][j].wordGroup; } maxpFactor[i]=tmpmaxpFactor[i]; } if (tmpDyad[0]) { free(tmpDyad[0]); tmpDyad[0]=NULL; } if (tmpDyad) { free(tmpDyad); tmpDyad=NULL; } if (tmpmaxpFactor) { free(tmpmaxpFactor); tmpmaxpFactor=NULL; } }
void mutation(Chrs **dyad,int numWordGroup,Words *word,int minSpaceWidth,int maxSpaceWidth, Wheel *wheel,int populationSize,Fitness *fitness,char *uniqMotif,double *maxpFactor,double maxpMutationRate) { register int i,j; int popuCn; // index of the number of dyads in population int whichToMutate; // the spaced dyad for mutation int kmerGroup; // pick a k-mer group (tetramer,pentamer,hexamer) in which a new word will be selected int whichPartDyad; // pick a component of a spaced dyad for mutation int spaceWidth; double *tmpmaxpFactor; double rand,newFactor; Chrs **tmpDyad; tmpDyad=alloc_chrs(populationSize,4); tmpmaxpFactor=alloc_double(populationSize); popuCn=0; for (i=0; i<populationSize; i++) { if (uniqMotif[i]=='1') { for (j=0; j<3; j++) { tmpDyad[popuCn][j].wordID =dyad[fitness[i].index][j].wordID; tmpDyad[popuCn][j].wordGroup=dyad[fitness[i].index][j].wordGroup; } tmpmaxpFactor[popuCn]=maxpFactor[fitness[i].index]; popuCn++; } } // printf("popuCn=%d\n",popuCn); while (popuCn<populationSize) { // sample with replacement with probability proportional to fitness score rand=(double)populationSize*runif(0,1); whichToMutate=0; for (j=0; j<populationSize; j++) { if (rand>=wheel[j].start && rand<=wheel[j].end) { whichToMutate=wheel[j].index; break; } } tmpmaxpFactor[popuCn]=maxpFactor[whichToMutate]; for (j=0; j<3; j++) { tmpDyad[popuCn][j].wordID =dyad[whichToMutate][j].wordID; tmpDyad[popuCn][j].wordGroup=dyad[whichToMutate][j].wordGroup; } if (runif(0,1)<maxpMutationRate) { // find a different maxp factor, keep dyad unchanged do { newFactor=MAXP_BASE+MAXP_FACTOR*((int)(MAXP_SCALE*runif(0,1))); } while (fabs(newFactor-tmpmaxpFactor[popuCn])<0.001); tmpmaxpFactor[popuCn]=newFactor; } else { // change one component of the dyad, first find out how many components there are if (maxSpaceWidth==0) { whichPartDyad=(int)(2*runif(0,1)); // change w1 if (whichPartDyad==1) whichPartDyad=2; // skip spacer and change w2 } else { whichPartDyad=(int)(3*runif(0,1)); if (whichPartDyad==3) whichPartDyad--; } // if w1 of the dyad (w1-s-w2) is chosen if (whichPartDyad==0) { // decide which kmer kmerGroup (4-mer, 5-mer or 6-mer) from which w1 whill be replaced kmerGroup=(int)(numWordGroup*runif(0,1)); if (kmerGroup==numWordGroup) kmerGroup--; // select a k-mer from the k-group with prob proportional to z-score rand=runif(0,1); tmpDyad[popuCn][0].wordID=0; for (j=0; j<word[kmerGroup].count; j++) { if (rand>=word[kmerGroup].prob_sta[j] && rand<=word[kmerGroup].prob_end[j]) { tmpDyad[popuCn][0].wordID=j; break; } } tmpDyad[popuCn][0].wordGroup=kmerGroup; // mark the kmer kmerGroup from which w1 is selected } // if the spacer is chosen else if (whichPartDyad==1) { // choose a gap that is different from the current one do { spaceWidth=minSpaceWidth+(int)((maxSpaceWidth-minSpaceWidth+1)*runif(0,1)); } while (spaceWidth==tmpDyad[popuCn][1].wordID); tmpDyad[popuCn][1].wordID=spaceWidth; tmpDyad[popuCn][1].wordGroup=-1; // dummy - not used } // if w2 of the dyad (w1-space-w2) is chosen else { kmerGroup=(int)(numWordGroup*runif(0,1)); if (kmerGroup==numWordGroup) kmerGroup--; rand=runif(0,1); tmpDyad[popuCn][2].wordID=0; for (j=0; j<word[kmerGroup].count; j++) { if (rand>=word[kmerGroup].prob_sta[j] && rand<word[kmerGroup].prob_end[j]) { tmpDyad[popuCn][2].wordID=j; break; } } tmpDyad[popuCn][2].wordGroup=kmerGroup; // mark the kmer kmerGroup from which w2 is selected } } popuCn++; } // update the population for (i=0; i<populationSize; i++) { for (j=0; j<3; j++) { dyad[i][j].wordID =tmpDyad[i][j].wordID; dyad[i][j].wordGroup=tmpDyad[i][j].wordGroup; } maxpFactor[i]=tmpmaxpFactor[i]; } if (tmpDyad[0]) { free(tmpDyad[0]); tmpDyad[0]=NULL; } if (tmpDyad) { free(tmpDyad); tmpDyad=NULL; } if (tmpmaxpFactor) { free(tmpmaxpFactor); tmpmaxpFactor=NULL; } }
SEXP GADEM_Analysis(SEXP sequence,SEXP sizeSeq, SEXP accession, SEXP Rverbose,SEXP RnumWordGroup,SEXP RnumTop3mer,SEXP RnumTop4mer,SEXP RnumTop5mer,SEXP RnumGeneration,SEXP RpopulationSize, SEXP RpValue,SEXP ReValue,SEXP RextTrim,SEXP RminSpaceWidth,SEXP RmaxSpaceWidth,SEXP RuseChIPscore,SEXP RnumEM,SEXP RfEM, SEXP RwidthWt,SEXP RfullScan, SEXP RslideWinPWM,SEXP RstopCriterion,SEXP RnumBackgSets,SEXP RweightType,SEXP RbFileName,SEXP RListPWM,SEXP RminSites,SEXP RmaskR,SEXP Rnmotifs) { char *bFileName; SEXP ResultsGadem; SEXP RSpwm; PROTECT(ResultsGadem=NEW_LIST(100)); int increment=0; double testrand; //Number of sequences int numSeq = INTEGER_VALUE(sizeSeq); // const // char *Fastaheader[size]; int incr=0; int longueur=length(sequence); int IncrementTemp=0; // basic settings/info int maxSeqLen,*seqLen; // sequence info double aveSeqLen; // sequence info char **seq,**rseq; int *geneID; // sequence info char **oseq,**orseq; // copy of the original sequences char **sseq,**rsseq; // simulated seqs. double *bfreq1, *bfreq0=NULL; // base frequencies double *ChIPScore; // chip score int maskR; // mask simple repeats before running the algorithm // pwms double ***pwm; // initial population of PWMs from spaced dyads int *pwmLen; // initial pwm lengths double **opwm2; // EM-derived PWM double ***opwm; // observed PWMs from identified sites double ***epwm; // em-optimized PWMs double **logepwm; // log(em-optimized PWM) int *pwmnewLen; // final motif length after extending to both ends // llr score distr. Pgfs *llrDist; // llr distribution from pgf method int llrDim; // llr distribution dimension int **ipwm; // integer pwm for computing llr score distribution // EM, motif, sites double pvalueCutoff; // user input, used to determine score cutoff based on ipwm int *scoreCutoff; // pwm score cutoff for the corresponding p-value cutoff double logev; // log of E-value of a motif; int useChIPscore; // indicator for using ChIP-seq score for seq. selection for EM int numEM; // number of EM steps double E_valueCutoff; // log E-value cutoff //int nsitesEM; // number of binding sites in sequences subjected to EM int minsitesEM; // minimal number of sites in a motif in EM sequences int *nsites; // number of binding sites in full data int minsites; // minimal number of sites in a motif in full data Sites **site; // binding sites in all sequences int motifCn; // number of motifs sought and found int extTrim; int noMotifFound; // none of the dyads in the population resulted in a motif char **pwmConsensus; // consensus sequences of motifs double pwmDistCutoff; // test statistic for motif pwm similarity char *uniqMotif; // motifs in a population unique or not int numUniq; // number of unique motifs in a population int slideWinPWM; // sliding window for comparing pwm similarity int widthWt; // window width in which nucleotides are given large weights for PWM optimization int fullScan; // scan scan on the original sequences or masked sequences // background int numBackgSets; // weights double **posWeight; // spatial weights int weightType; // four weight types 0, 1, 2, 3, or 4 // words for spaced dyad Words *word; // top-ranked k-mers as the words for spaced dyads int numTop3mer,numTop4mer,numTop5mer; // No. of top-ranked k-mers as words for dyads int maxWordSize; // max of the above three int numWordGroup; // number of non-zero k-mer groups int minSpaceWidth,maxSpaceWidth; // min and max width of spacer of the spaced dyads Chrs **dyad; // initial population of "chromosomes" char **sdyad; // char of spaced dyads // GA int populationSize,numGeneration; // GA parameters double maxpMutationRate; Fitness *fitness; // "chromosome" fitness Wheel *wheel; // roulette-wheel selection // to speed up only select a subset of sequences for EM algorithm double fEM; // percentage of sequences used in EM algorithm int numSeqEM; // number of sequences subject to EM char *Iseq; // Indicator if a sequence is used in EM or not int *emSeqLen; // length of sequences used in EM double *maxpFactor; int numCycle; // number of GADEM cycles int generationNoMotif; // maximal number of GA generations in a GADEM cycle resulted in no motifs // mis. //seed_t seed; // random seed int motifCn2,id,numCycleNoMotif,verbose,minminSites,nmotifs; int startPWMfound,stopCriterion; char *mFileName,*oFileName,*pwmFileName,*tempRbFileName; time_t start; int cn[4],bcn[4],*seqCn,*bseqCn,avebnsites,avebnsiteSeq,totalSitesInput; int i; int ii=0; int jjj=0; /*************/ FILE * output = fopen("output.txt", "w"); /*************/ GetRNGstate(); mFileName=alloc_char(500); mFileName[0]='\0'; oFileName=alloc_char(500); oFileName[0]='\0'; pwmFileName=alloc_char(500); pwmFileName[0]='\0'; bFileName=alloc_char(500); bFileName[0]='\0'; //tempRbFileName=alloc_char(500); tempRbFileName[0]='\0'; seq=NULL; aveSeqLen=0; maxSeqLen=0; //minsites=-1; startPWMfound=0; maxSeqLen=0; for(incr=1;incr<longueur;incr=incr+2) { if (length(STRING_ELT(sequence,(incr)))>maxSeqLen) maxSeqLen=length(STRING_ELT(sequence,(incr))); } // fprintf(output,"maxLength=%d",maxSeqLen); // exit(0); seq=alloc_char_char(numSeq,maxSeqLen+1); for(incr=1;incr<longueur;incr=incr+2) { for (int j=0; j<length(STRING_ELT(sequence,(incr))); j++) { seq[IncrementTemp][j]=CHAR(STRING_ELT(sequence,(incr)))[j]; } IncrementTemp++; } verbose=LOGICAL_VALUE(Rverbose); numWordGroup=INTEGER_VALUE(RnumWordGroup); minsites=INTEGER_VALUE(RminSites); numTop3mer=INTEGER_VALUE(RnumTop3mer); numTop4mer=INTEGER_VALUE(RnumTop4mer); numTop5mer=INTEGER_VALUE(RnumTop5mer); numGeneration=INTEGER_VALUE(RnumGeneration); populationSize=INTEGER_VALUE(RpopulationSize); pvalueCutoff=NUMERIC_VALUE(RpValue); E_valueCutoff=NUMERIC_VALUE(ReValue); extTrim=INTEGER_VALUE(RextTrim); minSpaceWidth=INTEGER_VALUE(RminSpaceWidth); maxSpaceWidth=INTEGER_VALUE(RmaxSpaceWidth); useChIPscore=NUMERIC_VALUE(RuseChIPscore); numEM=INTEGER_VALUE(RnumEM); fEM=NUMERIC_VALUE(RfEM); widthWt=INTEGER_VALUE(RwidthWt); fullScan=INTEGER_VALUE(RfullScan); slideWinPWM=INTEGER_VALUE(RslideWinPWM); numUniq=populationSize; stopCriterion=INTEGER_VALUE(RstopCriterion); numBackgSets=INTEGER_VALUE(RnumBackgSets); weightType=NUMERIC_VALUE(RweightType); //const char *tempRbFileName[1]; tempRbFileName = convertRString2Char(RbFileName); //tempRbFileName[0]=CHAR(STRING_ELT(RbFileName,0)); nmotifs = INTEGER_VALUE(Rnmotifs); maskR = INTEGER_VALUE(RmaskR); if(numSeq>MAX_NUM_SEQ) { error("Error: maximal number of seqences reached!\nPlease reset MAX_NUM_SEQ in gadem.h and rebuild (see installation)\n"); } strcpy(bFileName,tempRbFileName); ChIPScore=alloc_double(MAX_NUM_SEQ); seqLen=alloc_int(MAX_NUM_SEQ); geneID=alloc_int(MAX_NUM_SEQ); // seq=sequences; // numSeq=size; int len; for (i=0; i<numSeq; i++) { len=strlen(seq[i]); seqLen[i]=len; geneID[i]=INTEGER(accession)[i]; } aveSeqLen=0; for (i=0; i<numSeq; i++) aveSeqLen +=seqLen[i]; aveSeqLen /=(double)numSeq; for (i=0; i<numSeq; i++) { if (seqLen[i]>maxSeqLen) maxSeqLen=seqLen[i]; } rseq=alloc_char_char(numSeq,maxSeqLen+1); oseq=alloc_char_char(numSeq,maxSeqLen+1); orseq=alloc_char_char(numSeq,maxSeqLen+1); for (i=0; i<numSeq; i++) { if(seqLen[i]>maxSeqLen) maxSeqLen=seqLen[i]; } reverse_seq(seq,rseq,numSeq,seqLen); // make a copy of the original sequences both strands for (i=0; i<numSeq; i++) { for (int j=0; j<seqLen[i]; j++) { oseq[i][j]=seq[i][j]; orseq[i][j]=rseq[i][j]; } oseq[i][seqLen[i]]='\0'; orseq[i][seqLen[i]]='\0'; } if (strcmp(bFileName,"NULL")!= 0) { bfreq0=alloc_double(5); read_background(bFileName,bfreq0); } if (GET_LENGTH(RListPWM)!= 0) { startPWMfound=1; } else { } // check for input parameters if(numGeneration<1) { error("number of generaton < 1.\n"); } if(populationSize<1) { error("population size < 1.\n"); } if (minSpaceWidth<0) { error("minimal number of unspecified bases in spaced dyads <0.\n"); } if (maxSpaceWidth<0) { error("maximal number of unspecified bases in spaced dyads <0.\n"); } if (minSpaceWidth>maxSpaceWidth) { error("mingap setting must <= to maxgap setting.\n\n"); } if (maxSpaceWidth+12>MAX_PWM_LENGTH) { error("maxgap setting plus word lengths exceed <MAX_PWM_LENGTH>.\n"); } if (numEM<0) { error("number of EM steps is zero.\n"); } if (numEM==0) { error("number of EM steps = 0, no EM optimization is carried out.\n"); } if (fullScan!=0 && fullScan!=1) fullScan=0; maxWordSize=0; if (numTop3mer>maxWordSize) maxWordSize=numTop3mer; if (numTop4mer>maxWordSize) maxWordSize=numTop4mer; if (numTop5mer>maxWordSize) maxWordSize=numTop5mer; // any one, two or three: tetramer, pentamer, hexamer if (numTop3mer==0 && numTop4mer==0 && numTop5mer==0) { error("maxw3, maxw4, and maxw5 all zero - no words for spaced dyads.\n"); } // if (startPWMfound && fEM!=0.5 && fEM!=1.0 & verbose) // { // warning("fEM argument is ignored in a seeded analysis\n"); // } if (startPWMfound) { // if(verbose) // { // if (populationSize!=10 && populationSize!=100) warning("pop argument is ignored in a seeded analysis, -pop is set to 10.\n"); // if (numGeneration!=1 && numGeneration!=5) warning("gen argument is ignored in a seeded analysis, -gen is set to 1.\n"); // } fEM=1.0; populationSize=FIXED_POPULATION; numGeneration=1; } // number of sequences for EM if (fEM>1.0 || fEM<=0.0) { error("The fraction of sequences subject to EM is %3.2f.\n",fEM); } numSeqEM=(int)(fEM*numSeq); // memory callocations Iseq =alloc_char(numSeq+1); opwm2 =alloc_double_double(MAX_PWM_LENGTH,4); ipwm =alloc_int_int(MAX_PWM_LENGTH,4); logepwm=alloc_double_double(MAX_PWM_LENGTH,4); emSeqLen=alloc_int(numSeqEM); scoreCutoff=alloc_int(1000); // scoreCutoff=alloc_int(populationSize); llrDist=alloc_distr(MAX_DIMENSION); posWeight=alloc_double_double(numSeq,maxSeqLen); sseq=alloc_char_char(MAX_NUM_SEQ,maxSeqLen+1); rsseq=alloc_char_char(MAX_NUM_SEQ,maxSeqLen+1); bfreq1=base_frequency(numSeq,seq,seqLen); if (strcmp(bFileName,"NULL") == 0) { bfreq0=alloc_double(5); for (i=0; i<4; i++) { bfreq0[i]=bfreq1[i]; } } // if minN not specified, set the defaults accordingly if (minsites==-1) { minsites =max(2,(int)(numSeq/20)); } minsitesEM=(int)(fEM*minsites); maxpMutationRate=MAXP_MUTATION_RATE; // determine the distribution and critical cut point pwmDistCutoff=vector_similarity(); /*---------- select a subset of sequences for EM only --------------*/ if (useChIPscore==1) { select_high_scoring_seq_for_EM (ChIPScore,numSeq,numSeqEM,Iseq,fEM); } else { sample_without_replacement(Iseq,numSeqEM,numSeq); } /*-------------------- end of selection --------------------------*/ if (maskR==1) mask_repetitive(geneID,seq,numSeq,seqLen,mFileName); if (widthWt<20) { warning("The window width of sequence centered on the nucleotides having large weights in EM for PWM optimization is small\n Motif longer than %d will not be discovered\n",widthWt); } time(&start); // if (weightType==1 || weightType==3) //ffprintf(output,fp,"window width of sequence centered on the nucleotides having large weights for PWM optimization: %d\n",widthWt); //ffprintf(output,fp,"pwm score p-value cutoff for declaring binding site:\t%e\n",pvalueCutoff); if(verbose) { ffprintf(output,output,"==============================================================================================\n"); ffprintf(output,output,"input sequence file: %s\n",mFileName); fprintf(output,"number of sequences and average length:\t\t\t\t%d %5.1f\n",numSeq,aveSeqLen); fprintf(output,"Use pgf method to approximate llr null distribution\n"); fprintf(output,"parameters estimated from sequences in: %s\n\n",mFileName); if (weightType!=0) fprintf(output,"non-uniform weight applies to each sequence - type:\t\t%d\n",weightType); fprintf(output,"number of GA generations & population size:\t\t\t%d %d\n\n",numGeneration,populationSize); fprintf(output,"PWM score p-value cutoff for binding site declaration:\t\t%e\n",pvalueCutoff); fprintf(output,"ln(E-value) cutoff for motif declaration:\t\t\t%f\n\n",E_valueCutoff); // fprintf(output,"number (percentage) of sequences selected for EM:\t\t%d(%4.1f\%)\n",numSeqEM,100.0*(double)numSeqEM/(double)numSeq); fprintf(output,"number of EM steps:\t\t\t\t\t\t%d\n",numEM); fprintf(output,"minimal no. sites considered for a motif:\t\t\t%d\n\n",minsites); fprintf(output,"[a,c,g,t] frequencies in input data:\t\t\t\t%f %f %f %f\n",bfreq1[0],bfreq1[1],bfreq1[2],bfreq1[3]); fprintf(output,"==============================================================================================\n"); } // if (pgf) // { // if (userMarkovOrder!=0 & verbose) // { // warning("The user-specified background Markov order (%d) is ignored when -pgf is set to 1\n",userMarkovOrder); // } // if (bFileName[0]!='\0' & verbose) // { // warning("The user-specified background models: %s are not used when -pgf is set to 1\n",bFileName); // } // } // if (startPWMfound && fEM!=1.0 & verbose) // { // warning("fEM argument is ignored in a seeded analysis\n"); // } // determine seq length by counting only [a,c,g,t], seqLen is used in E-value calculation // determine the distribution and critical cut point pwmDistCutoff=vector_similarity(); if (weightType==0) assign_weight_uniform(seqLen,numSeq,posWeight); else if (weightType==1) assign_weight_triangular(seqLen,numSeq,posWeight); else if (weightType==2) assign_weight_normal(seqLen,numSeq,posWeight); else { error("Motif prior probability type not found - please choose: 0, 1, or 2\n"); // fprintf(output,"Consider: -posWt 1 for strong central enrichment as in ChIP-seq\n"); // fprintf(output," -posWt 0 for others\n\n"); // exit(0); } /* if (startPWMfound) minminSites=minsites; else minminSites=(int)(0.40*minsitesEM);*/ motifCn=0; noMotifFound=0; numCycle=0; numCycleNoMotif=0; int compt=0; int lengthList=GET_LENGTH(RListPWM); /****************************************/ broadcastOnce(maxSeqLen, numEM, startPWMfound, minminSites, maxpFactor, numSeq, numSeqEM, Iseq, bfreq0, posWeight, weightType, pvalueCutoff, emSeqLen, populationSize); /****************************************/ do { if(!startPWMfound) { if(verbose) { fprintf(output,"*** Running an unseeded analysis ***\n"); // fprintf(output,"\n|------------------------------------------------------------------|\n"); // fprintf(output,"| |\n"); // fprintf(output,"| *** Running an unseeded analysis *** |\n"); // fprintf(output,"| |\n"); // fprintf(output,"|------------------------------------------------------------------|\n\n"); } populationSize=INTEGER_VALUE(RpopulationSize); numGeneration=INTEGER_VALUE(RnumGeneration); dyad =alloc_chrs(populationSize,4); wheel =alloc_wheel(populationSize); fitness=alloc_fitness(populationSize); maxpFactor=alloc_double(populationSize); uniqMotif=alloc_char(populationSize+1); opwm =alloc_double_double_double(populationSize,MAX_PWM_LENGTH,4); epwm=alloc_double_double_double(populationSize,MAX_PWM_LENGTH,4); pwmConsensus=alloc_char_char(populationSize,MAX_PWM_LENGTH+1); pwm =alloc_double_double_double(populationSize,MAX_PWM_LENGTH,4); pwmLen=alloc_int(populationSize); sdyad =alloc_char_char(populationSize,MAX_PWM_LENGTH+1); word =alloc_word(numWordGroup,maxWordSize); minminSites=(int)(0.40*minsitesEM); // identify top-ranked k-mers (k=3,4,5) for spaced dyads if(verbose) fprintf(output,"GADEM cycle %2d: enumerate and count k-mers... ",numCycle+1); numWordGroup=word_for_dyad(word,seq,rseq,numSeq,seqLen,bfreq1,&numTop3mer,&numTop4mer,&numTop5mer); if(verbose) fprintf(output,"Done.\n"); // generating a "population" of spaced dyads if(verbose) fprintf(output,"Initializing GA... "); initialisation(dyad,populationSize,numWordGroup,word,minSpaceWidth,maxSpaceWidth,maxpFactor); if(verbose) fprintf(output,"Done.\n"); } else { if(verbose) { fprintf(output,"*** Running an seeded analysis ***\n"); // fprintf(output,"\n|------------------------------------------------------------------|\n"); // fprintf(output,"| |\n"); // fprintf(output,"| *** Running a seeded analysis *** |\n"); // fprintf(output,"| |\n"); // fprintf(output,"|------------------------------------------------------------------|\n\n"); } populationSize=FIXED_POPULATION; dyad =alloc_chrs(populationSize,4); pwm=alloc_double_double_double(populationSize,MAX_PWM_LENGTH,4); pwmLen=alloc_int(populationSize); maxpFactor=alloc_double(populationSize); uniqMotif=alloc_char(populationSize+1); opwm =alloc_double_double_double(populationSize,MAX_PWM_LENGTH,4); epwm=alloc_double_double_double(populationSize,MAX_PWM_LENGTH,4); pwmConsensus=alloc_char_char(populationSize,MAX_PWM_LENGTH+1); sdyad =alloc_char_char(populationSize,MAX_PWM_LENGTH+1); word =alloc_word(numWordGroup,maxWordSize); wheel =alloc_wheel(populationSize); fitness=alloc_fitness(populationSize); minminSites=minsites; int lengthMatrix; lengthMatrix=GET_LENGTH(VECTOR_ELT(RListPWM,compt)); RSpwm=allocMatrix(REALSXP,4,(lengthMatrix/4)); RSpwm=VECTOR_ELT(RListPWM,compt); pwmLen[0]=read_pwm0(RSpwm,pwm[0],lengthMatrix); for(i=1; i<populationSize; i++) { for (int j=0; j<pwmLen[0]; j++) { for (int k=0; k<4; k++) { pwm[i][j][k]=pwm[0][j][k]; } } pwmLen[i]=pwmLen[0]; } for (i=0; i<populationSize; i++) { maxpFactor[i]=FIXED_MAXPF*(i+1); standardize_pwm(pwm[i],pwmLen[i]); consensus_pwm(pwm[i],pwmLen[i],pwmConsensus[i]); strcpy(sdyad[i],pwmConsensus[i]); } } generationNoMotif=0; for (jjj=0; jjj<numGeneration; jjj++) { // convert spaced dyads to letter probability matrix if (!startPWMfound) { dyad_to_pwm(word,populationSize,dyad,pwm,pwmLen); } /* DO_APPLY(populationCalculation(maxSeqLen, numEM, fitness+ii, startPWMfound, minminSites, maxpFactor[ii], numSeq, numSeqEM, seq, rseq, seqLen, Iseq, bfreq0, posWeight, weightType, pvalueCutoff, emSeqLen, pwm[ii], pwmLen[ii], epwm[ii], opwm[ii], pwmConsensus[ii], scoreCutoff+ii, sdyad[ii], ii), populationSize, ii); */ /* Create the structure to send to all the other slaves */ broadcastEveryCycle(Iseq, pwm, pwmLen, pwmConsensus, scoreCutoff, sdyad, populationSize); populationCalculation(maxSeqLen, numEM, fitness+ii, startPWMfound, minminSites, maxpFactor[ii], numSeq, numSeqEM, seq, rseq, seqLen, Iseq, bfreq0, posWeight, weightType, pvalueCutoff, emSeqLen, pwm[ii], pwmLen[ii], epwm[ii], opwm[ii], pwmConsensus[ii], scoreCutoff+ii, sdyad[ii], ii); /* Receive the analyzed data from all the other slaves and compile them */ //getPopCalcResults(...); // for (i=0; i<5; i++) // { // fprintf(output,"fitness.value=%lf\n",fitness[i].value); // fprintf(output,"fitness.index=%d\n",fitness[i].index); // fprintf(output,"maxpfactor=%lf\n",maxpFactor[i]); // fprintf(output,"scoreCutoff=%d\n",scoreCutoff[i]); // fprintf(output," spacedDyad: %s\n",sdyad[i]); // // for (l=0; l<pwmLen[i]; l++) // { // for (m=0; m<4; m++) // { // fprintf(output,"opwm[%d][%d][%d]=%lf ",i,l,m,opwm[i][l][m]); // fprintf(output,"epwm[%d][%d][%d]=%lf ",i,l,m,epwm[i][l][m]); // fprintf(output,"pwm[%d][%d][%d]=%lf ",i,l,m,pwm[i][l][m]); // } // fprintf(output,"\n"); // } // fprintf(output,"\n"); // } // // testrand=runif(0,1); // fprintf(output,"testrand1=%lf\n",testrand); if (populationSize>1) { sort_fitness(fitness,populationSize); } // for (i=0; i<5; i++) // { // fprintf(output,"fitness.value=%lf\n",fitness[i].value); // fprintf(output,"fitness.index=%d\n",fitness[i].index); // } numUniq=check_pwm_uniqueness_dist(opwm, pwmLen, populationSize, fitness, pwmDistCutoff, E_valueCutoff, uniqMotif, slideWinPWM); // for (i=0; i<5; i++) // { // fprintf(output,"fitness.value=%lf\n",fitness[i].value); // fprintf(output,"fitness.index=%d\n",fitness[i].index); // fprintf(output,"maxpfactor=%lf\n",maxpFactor[i]); // fprintf(output,"scoreCutoff=%d\n",scoreCutoff[i]); // fprintf(output," spacedDyad: %s\n",sdyad[i]); // // for (l=0; l<pwmLen[i]; l++) // { // for (m=0; m<4; m++) // { // fprintf(output,"opwm[%d][%d][%d]=%lf",i,l,m,opwm[i][l][m]); // } // fprintf(output,"\n"); // } // fprintf(output,"\n"); // } if(verbose) { fprintf(output,"GADEM cycle[%3d] generation[%3d] number of unique motif: %d\n",numCycle+1,jjj+1,numUniq); for (i=0; i<populationSize; i++) { if (uniqMotif[i]=='1') { fprintf(output," spacedDyad: %s ",sdyad[fitness[i].index]); for (int j=strlen(sdyad[fitness[i].index]); j<maxSpaceWidth+10; j++) fprintf(output," "); fprintf(output,"motifConsensus: %s ",pwmConsensus[fitness[i].index]); for (int j=strlen(sdyad[fitness[i].index]); j<maxSpaceWidth+10; j++) fprintf(output," "); fprintf(output," %3.2f fitness: %7.2f\n",maxpFactor[fitness[i].index],fitness[i].value); } } fprintf(output,"\n"); } if (jjj<numGeneration-1) { // fitness based selection with replacement roulett_wheel_fitness(fitness,populationSize,wheel); // mutation and crossover operations if (populationSize>1) { testrand=runif(0,1); if (testrand>=0.5) { mutation(dyad,numWordGroup,word,minSpaceWidth,maxSpaceWidth,wheel,populationSize,fitness,uniqMotif, maxpFactor,maxpMutationRate); } else { crossover(dyad,numWordGroup,word,minSpaceWidth,maxSpaceWidth,wheel,populationSize,fitness,uniqMotif, maxpFactor,maxpMutationRate); } } else { mutation(dyad,numWordGroup,word,minSpaceWidth,maxSpaceWidth,wheel,populationSize,fitness,uniqMotif, maxpFactor,maxpMutationRate); } } } if((numCycle+1)< lengthList) { compt++; } else { startPWMfound=0; } numCycle++; site=alloc_site_site(numUniq+1,MAX_SITES); nsites=alloc_int(numUniq+1); pwmnewLen=alloc_int(numUniq+1); // after base extension and trimming seqCn=alloc_int(MAX_NUM_SEQ); bseqCn=alloc_int(MAX_NUM_SEQ); // final step user-specified background model is used motifCn2=0; // motifCn per GADEM cycle for (ii=0; ii<populationSize; ii++) { id=fitness[ii].index; if(uniqMotif[ii]=='0') { continue; } // approximate the exact llr distribution using Staden's method // if(verbose) // { // fprintf(output,"Approximate the exact pwm llr score distribution using the pgf method.\n"); // } log_ratio_to_int(epwm[id],ipwm,pwmLen[id],bfreq0); // compute score distribution of the (int)PWM using Staden's method llrDim=pwm_score_dist(ipwm,pwmLen[id],llrDist,bfreq0); //fprintf(output,"Avant ScoreCutoff %d \n",scoreCutoff[id]); scoreCutoff[id]=determine_cutoff(llrDist,llrDim,pvalueCutoff); //fprintf(output,"Apres ScoreCutoff %d \n",scoreCutoff[id]); if(fullScan) { nsites[motifCn2]=scan_llr_pgf(llrDist,llrDim,site[motifCn2],numSeq,oseq,orseq,seqLen,ipwm,pwmLen[id],scoreCutoff[id],bfreq0); } else { nsites[motifCn2]=scan_llr_pgf(llrDist,llrDim,site[motifCn2],numSeq,seq,rseq,seqLen,ipwm,pwmLen[id],scoreCutoff[id],bfreq0); } if (nsites[motifCn2]>=max(2,minsites)) { for (int j=0; j<numSeq; j++) seqCn[j]=0; for (int j=0; j<nsites[motifCn2]; j++) seqCn[site[motifCn2][j].seq]++; for (int j=0; j<4; j++) cn[j]=0; for (int j=0; j<numSeq; j++) { if (seqCn[j]==0) cn[0]++; if (seqCn[j]==1) cn[1]++; if (seqCn[j]==2) cn[2]++; if (seqCn[j]>2) cn[3]++; } totalSitesInput=nsites[motifCn2]; if (extTrim) { if (fullScan) { extend_alignment(site[motifCn2],numSeq,oseq,orseq,seqLen,nsites[motifCn2],pwmLen[id],&(pwmnewLen[motifCn2])); } else { extend_alignment(site[motifCn2],numSeq,seq,rseq,seqLen,nsites[motifCn2],pwmLen[id],&(pwmnewLen[motifCn2])); } } else { pwmnewLen[motifCn2]=pwmLen[id]; } if (fullScan) { align_sites_count(site[motifCn2],oseq,orseq,nsites[motifCn2],pwmnewLen[motifCn2],opwm2); } else { align_sites_count(site[motifCn2],seq,rseq,nsites[motifCn2],pwmnewLen[motifCn2],opwm2); } standardize_pwm(opwm2,pwmnewLen[motifCn2]); logev=E_value(opwm2,nsites[motifCn2],bfreq0,pwmnewLen[motifCn2],numSeq,seqLen); if (logev<=E_valueCutoff) { consensus_pwm(opwm2,pwmnewLen[motifCn2],pwmConsensus[id]); if (fullScan) { SET_VECTOR_ELT(ResultsGadem,increment,print_result_R(site[motifCn2],nsites[motifCn2],numSeq,oseq,orseq,seqLen,logev,opwm2,pwmnewLen[motifCn2],motifCn+1,sdyad[id],pwmConsensus[id],numCycle,pvalueCutoff,maxpFactor[id],geneID)); increment++; print_motif(site[motifCn2],nsites[motifCn2],oseq,orseq,seqLen,pwmnewLen[motifCn2],motifCn+1,opwm2); } else { SET_VECTOR_ELT(ResultsGadem,increment,print_result_R(site[motifCn2],nsites[motifCn2],numSeq,seq,rseq,seqLen,logev,opwm2,pwmnewLen[motifCn2], motifCn+1,sdyad[id],pwmConsensus[id],numCycle,pvalueCutoff,maxpFactor[id],geneID)); increment++; print_motif(site[motifCn2],nsites[motifCn2],seq,rseq,seqLen,pwmnewLen[motifCn2],motifCn+1,opwm2); } mask_sites(nsites[motifCn2],seq,rseq,seqLen,site[motifCn2],pwmnewLen[motifCn2]); /* ----------------------compute the average number of sites in background sequences ----------------------*/ avebnsites=0; avebnsiteSeq=0; for (i=0; i<numBackgSets; i++) { simulate_background_seq(bfreq0,numSeq,seqLen,sseq); reverse_seq(sseq,rsseq,numSeq,seqLen); nsites[motifCn2]=scan_llr_pgf(llrDist,llrDim,site[motifCn2],numSeq,sseq,rsseq,seqLen,ipwm,pwmLen[id],scoreCutoff[id],bfreq0); for (int j=0; j<numSeq; j++) bseqCn[j]=0; for (int j=0; j<nsites[motifCn2]; j++) bseqCn[site[motifCn2][j].seq]++; for (int j=0; j<4; j++) bcn[j]=0; for (int j=0; j<numSeq; j++) { if (bseqCn[j]==0) bcn[0]++; if (bseqCn[j]==1) bcn[1]++; if (bseqCn[j]==2) bcn[2]++; if (bseqCn[j]>2) bcn[3]++; } //ffprintf(output,fq,"background set[%2d] Seqs with 0,1,2,>2 sites: %d %d %d %d\n",i+1,bcn[0],bcn[1],bcn[2],bcn[3]); avebnsites+=nsites[motifCn2]; avebnsiteSeq+=(numSeq-bcn[0]); } avebnsites/=numBackgSets; avebnsiteSeq/=numBackgSets; /* -----------------end compute the average number of sites in background sequences ----------------------*/ motifCn++; motifCn2++; //if((numCycle+1) > lengthList & fixSeeded) // { // numCycleNoMotif=1; // startPWMfound=1; // } else { numCycleNoMotif=0; // } } } } /* for (int i=0; i<motifCn2; i++) { mask_sites(nsites[i],seq,rseq,seqLen,site[i],pwmnewLen[i]); } */ if (site[0]) { free(site[0]); site[0]=NULL; } if (site) { free(site); site=NULL; } if (nsites) { free(nsites); nsites=NULL; } if (pwmnewLen) { free(pwmnewLen); pwmnewLen=NULL; } if (motifCn2==0) numCycleNoMotif++; if (motifCn==nmotifs) { fprintf(output,"Maximal number of motifs (%d) reached\n",nmotifs); break; } if (numCycleNoMotif==stopCriterion) noMotifFound=1; }while (!noMotifFound); // fclose(fp); /*if (!startPWMfound) { if (dyad[0]) { free(dyad[0]); dyad[0]=NULL; } if (dyad) { free(dyad); dyad=NULL; } }*/ if (seqLen) { free(seqLen); seqLen=NULL; } if (pwm[0][0]) { free(pwm[0][0]); pwm[0][0]=NULL; } if (pwm[0]) { free(pwm[0]); pwm[0]=NULL; } if (pwm) { free(pwm); pwm=NULL; } if (opwm2[0]) { free(opwm2[0]); opwm2[0]=NULL; } if (opwm2) { free(opwm2); opwm2=NULL; } if (opwm[0][0]) { free(opwm[0][0]); opwm[0][0]=NULL; } if (opwm[0]) { free(opwm[0]); opwm[0]=NULL; } if (opwm) { free(opwm); opwm=NULL; } if(ipwm[0]) { free(ipwm[0]); ipwm[0]=NULL; } if (ipwm) { free(ipwm); ipwm=NULL; } if (pwmLen) { free(pwmLen); pwmLen=NULL; } if (seq[0]) { free(seq[0]); seq[0]=NULL; } if (seq) { free(seq); seq=NULL; } // if (rseq[0]) { free(rseq[0]); rseq[0]=NULL; } // if (rseq) { free(rseq); rseq=NULL; } // if (oseq[0]) { free(oseq[0]); oseq[0]=NULL; } // if (oseq) { free(oseq); oseq=NULL; } // if (orseq[0]) { free(orseq[0]); orseq[0]=NULL; } // if (orseq) { free(orseq); orseq=NULL; } if (bfreq1) { free(bfreq1); bfreq1=NULL; } if (bfreq0) { free(bfreq0); bfreq0=NULL; } if (wheel) { free(wheel); wheel=NULL; } if (fitness) { free(fitness); fitness=NULL; } if (mFileName) { free(mFileName); mFileName=NULL; } if (oFileName) { free(oFileName); oFileName=NULL; } if (pwmFileName) { free(pwmFileName); pwmFileName=NULL; } if (sdyad[0]) { free(sdyad[0]); sdyad[0]=NULL; } if (sdyad) { free(sdyad); sdyad=NULL; } if (pwmConsensus[0]) { free(pwmConsensus[0]); pwmConsensus[0]=NULL; } if (pwmConsensus) { free(pwmConsensus); pwmConsensus=NULL; } //if (!startPWMfound && word) destroy_word(word,numWordGroup); PutRNGstate(); UNPROTECT(1); return(ResultsGadem); }