/**
* Fills a data table with the sample size (frequency) or the estimated a-priori
* probability of the classes.
*
* @param _this
* Pointer to this CStatistics instance
* @param idDst
* Pointer to the destination data instance
* @param bProb
* If <code>TRUE</code> the method estimates class a-priori
* probabilities otherwise it stores the classes' sample sizes
* @return <code>O_K</code> if successsfull, a (negative) error code otherwise
*/
INT16 CGEN_PUBLIC CStatistics_FreqEx
(
CStatistics* _this,
CData* idDst,
BOOL bProb
)
{
INT32 c = 0; /* Class loop counter */
INT32 C = 0; /* Number of statistics classes */
INT32 nTsz = 0; /* Total sample size */
FLOAT64* lpSsz = NULL; /* Pointer to class' c sample size */
/* Validate */ /* --------------------------------- */
if (!idDst) return IERROR(_this,ERR_NULLARG,"idDst",0,0); /* Check output data instance */
CData_Reset(idDst,TRUE); /* Clear destination instance */
CHECK_THIS_RV(NOT_EXEC); /* Check this pointer */
IF_NOK(CStatistics_Check(_this)) /* Check instance data */
return IERROR(_this,STA_NOTSETUP," ( use -status for details)",0,0); /* ... */
/* Initialize */ /* --------------------------------- */
C = CStatistics_GetNClasses(_this); /* Get number of statistics classes */
CData_Array(idDst,T_DOUBLE,1,C); /* Allocate output data instance */
CData_SetNBlocks(idDst,C); /* Set block number */
if (!CData_XAddr(idDst,0,0)) return IERROR(_this,ERR_NOMEM,0,0,0); /* Should have been successfull ... */
/* Store sample sizes / estimated a-rpior probabilities */ /* --------------------------------- */
nTsz = bProb ? CStatistics_GetNSamples(_this) : 1; /* Get frequency divident */
for (c=0; c<C; c++) /* Loop over classes */
{ /* >> */
DLPASSERT((lpSsz = CStatistics_GetPtr(_this,c,STA_DAI_SSIZE))); /* Get ptr. to class' c sample size*/
CData_Dstore(idDst,lpSsz[0]/(FLOAT64)nTsz,c,0); /* Store sample size of class c */
} /* << */
return O_K;
}
/*
* Manual page at statistics.def
*/
INT16 CGEN_PUBLIC CStatistics_Setup
(
CStatistics* _this,
INT32 nOrder,
INT32 nDim,
INT32 nCls,
CData* idLtb,
INT32 nIcLtb
)
{
INT32 c = 0; /* Statistics class loop counter */
INT32 n = 0; /* Dimension loop couner */
FLOAT64* lpMin = NULL; /* Ptr. to class' k minimum vector */
FLOAT64* lpMax = NULL; /* Ptr. to class' k maximum vector */
/* Validate */ /* --------------------------------- */
CHECK_THIS_RV(NOT_EXEC); /* Check this pointer */
if (nOrder<2) nOrder = 2; /* Default order is 2 */
if (nDim <1) nDim = 1; /* Default dimensionality is 1 */
if (nCls <1) nCls = 1; /* Default number of classes is 1 */
/* Initialize statistics */ /* --------------------------------- */
CStatistics_Reset(_this,TRUE); /* Start over */
IFIELD_RESET(CData,"dat"); /* Create/reset statistic data */
CData_Array(_this->m_idDat,T_DOUBLE,nDim,nCls*(nOrder+nDim+2)); /* Allocate statistic data */
CData_SetNBlocks(_this->m_idDat,nCls); /* Set number of blocks */
if (CData_IsEmpty(_this->m_idDat)) return IERROR(_this,ERR_NOMEM,0,0,0); /* Check if it worked out... */
for (c=0; c<nCls; c++) /* Loop over classes */
{ /* >> */
lpMin = CStatistics_GetPtr(_this,c,STA_DAI_MIN); /* Get ptr. to class' k min. vec. */
lpMax = CStatistics_GetPtr(_this,c,STA_DAI_MAX); /* Get ptr. to class' k max. vec. */
for (n=0; n<nDim; n++) /* Loop over dimensions */
{ /* >> */
lpMin[n] = T_DOUBLE_MAX; /* Initialize minimum vector */
lpMax[n] = T_DOUBLE_MIN; /* Initialize maximum vector */
} /* << */
} /* << */
/* Initialize label table */ /* --------------------------------- */
if (CData_IsEmpty(idLtb)) return O_K; /* No label table -> that's it */
if (CData_GetNRecs(idLtb)!=nCls) /* Bad number of labels */
return IERROR(_this,STA_NOTSETUP," (wrong no. of labels in idLtb)",0,0); /* -> Error */
if (nIcLtb<0) /* Label component not specified */
for (nIcLtb=0; nIcLtb<CData_GetNComps(idLtb); nIcLtb++) /* Seek first symbolic component */
if (dlp_is_symbolic_type_code(CData_GetCompType(idLtb,nIcLtb))) /* ... */
break; /* ... */
if (!dlp_is_symbolic_type_code(CData_GetCompType(idLtb,nIcLtb))) /* Label component not symbolic */
return IERROR(_this,STA_NOTSETUP," (label comp. not found in idLtb)",0,0); /* -> Error */
IFIELD_RESET(CData,"ltb"); /* Create/reset label table */
CData_SelectComps(_this->m_idLtb,idLtb,nIcLtb,1); /* Copy label table */
return O_K; /* Done */
}
/*
* Manual page at statistics.def
*/
INT16 CGEN_PUBLIC CStatistics_Pool
(
CStatistics* _this,
CStatistics* iSrc,
CData* idMap
)
{
INT32 i = 0; /* Current component index */
INT32 nC = 0; /* Current pooled statistics class */
INT32 nCs = 0; /* Current source class index */
INT32 nXC = 0; /* Number of pooled classes */
INT32 nRpb = 0; /* Statistics raw data block size */
INT16 nCheckSave = 0; /* Saved check level */
CData* idAux = NULL; /* Auxilary data instance #1 */
CData* idPmp = NULL; /* Pooling map */
CData* idPcd = NULL; /* Pooled class raw data buffer */
/* Initialize */ /* --------------------------------- */
CHECK_THIS_RV(0); /* Check this instance */
IF_NOK(CStatistics_Check(iSrc)) /* Check source statistics */
return IERROR(_this,ERR_INVALARG,"iSrc",0,0); /* ... */
nCheckSave = _this->m_nCheck; /* Save check level */
CStatistics_Reset(BASEINST(_this),TRUE); /* Reset destination */
_this->m_nCheck = nCheckSave; /* Restore check level */
IFIELD_RESET(CData,"dat"); /* Create pool raw stats. data inst. */
/* Protocol */ /* --------------------------------- */
IFCHECK /* On verbose level 1 */
{ /* >> */
printf("\n"); dlp_fprint_x_line(stdout,'-',dlp_maxprintcols()); /* Print protocol header */
printf("\n statistics -pool"); /* ... */
printf("\n"); dlp_fprint_x_line(stdout,'-',dlp_maxprintcols());printf("\n");/* ... */
} /* << */
/* No map --> pool all classes */ /* --------------------------------- */
if (CData_IsEmpty(idMap)) /* NULL or empty map instance */
{ /* >> */
IFCHECK printf("\n Empty pooling map --> pool all classes"); /* Protocol (verbose level 1) */
CStatistics_PoolInt(_this->m_idDat,iSrc->m_idDat,0); /* Pool sum data */
CStatistics_PoolInt(_this->m_idDat,iSrc->m_idDat,1); /* Pool min data */
CStatistics_PoolInt(_this->m_idDat,iSrc->m_idDat,2); /* Pool max data */
STA_PROTOCOL_FOOTER(1,"done"); /* Print protocol footer */
return O_K; /* That's it */
}
IFCHECK printf("\n Pooling by map"); /* Protocol (verbose level 1) */
ICREATEEX(CData,idAux,"CStatistics_Pool.~idAux",NULL); /* Create auxilary data instance #1 */
ICREATEEX(CData,idPmp,"CStatistics_Pool.~idPmp",NULL); /* Create pooling map */
ICREATEEX(CData,idPcd,"CStatistics_Pool.~idPcs",NULL); /* Create pooled raw stats.data inst.*/
/* Find and copy map component (pooled class) */ /* --------------------------------- */
for (i=0; i<CData_GetNComps(idMap); i++) /* Loop over components of idMap */
if (dlp_is_numeric_type_code(CData_GetCompType(idMap,i))) /* Is current component numeric? */
{ /* >> (Yes) */
CData_SelectComps(idPmp,idMap,i,1); /* Copy component */
break; /* Have ready :) */
} /* << */
if (CData_IsEmpty(idPmp)) /* Have not got map component */
{ /* >> */
IERROR(_this,STA_BADCOMP,"map",BASEINST(idMap)->m_lpInstanceName,"numeric");/* Error message */
DLPTHROW(STA_BADCOMP); /* Throw exception */
} /* << */
/* Create source class component */ /* --------------------------------- */
CData_AddComp(idPmp,"srcc",T_LONG); /* Add source class index component */
for (i=0; i<CData_GetNRecs(idPmp); i++) CData_Dstore(idPmp,i,i,1); /* Fill it */
/* Finish pooling map and initialize pooling */ /* --------------------------------- */
CData_Sortup(idPmp,idPmp,0); /* Sort map by pooled class index */
nXC = (INT32)CData_Dfetch(idPmp,CData_GetNRecs(idPmp)-1,0)+1; /* Get greatest pooled class index */
IFCHECK printf("\n Pooling %ld statistics classes",(long)nXC); /* Protocol (verbose level 1) */
IFCHECKEX(3) CData_Print(idPmp); /* Print pooling map (verbose lvl.3) */
nRpb = CData_GetNRecsPerBlock(iSrc->m_idDat); /* Get block size */
/* Prepare pooled statistics */ /* --------------------------------- */
CData_Scopy(_this->m_idDat,iSrc->m_idDat); /* Create target raw data components */
CData_Allocate(_this->m_idDat,nRpb*nXC); /* Allocate target raw data */
CData_SetNBlocks(_this->m_idDat,nXC); /* Set target statistics block number*/
/* Pooling loop */ /* --------------------------------- */
for (i=0; i<CData_GetNRecs(idPmp); ) /* Loop over pooling map */
{ /* >> */
/* - Copy raw statistics data of one pooled class */ /* - - - - - - - - - - - - - - - - */
nC = (INT32)CData_Dfetch(idPmp,0,0); /* Get pooled class index */
IFCHECK printf("\n Pooled class %3ld"); /* Protocol (verbose level 1) */
for (i=0; i<CData_GetNRecs(idPmp); i++) /* Loop over partition of pool.map */
{ /* >> */
if (nC != (INT32)CData_Dfetch(idPmp,0,0)) break; /* Not the current class anymore */
nCs = (INT32)CData_Dfetch(idPmp,i,1); /* Get source class index */
IFCHECK printf("\n - Source class %3ld",nCs); /* Protocol (verbose level 1) */
CData_SelectBlocks(idAux,iSrc->m_idDat,nCs,1); /* Copy raw stats. data block */
CData_Cat(idPcd,idAux); /* Append to buffer */
} /* << */
/* - Pool data */ /* - - - - - - - - - - - - - - - - */
CData_SetNBlocks(idPcd,CData_GetNRecs(idPcd)/nRpb); /* Set block count of aggr. buffer */
IFCHECK /* Protocol (verbose level 1) */
printf("\n - Aggregating %ld statistics classes", /* | */
(long)CData_GetNBlocks(idPcd)); /* | */
CStatistics_PoolInt(idAux,idPcd,0); /* Pool sum data */
CStatistics_PoolInt(idAux,idPcd,1); /* Pool min data */
CStatistics_PoolInt(idAux,idPcd,2); /* Pool max data */
/* - Store pooled raw statistics data block */ /* - - - - - - - - - - - - - - - - */
dlp_memmove /* Copy pooled raw stats. data */
( /* | */
CData_XAddr(_this->m_idDat,nC*nRpb,0), /* | To target statistics block */
CData_XAddr(idAux,0,0), /* | From aggregation buffer */
CData_GetNRecs(idAux)*CData_GetRecLen(idAux) /* | Length of aggregation buffer */
); /* | */
/* - Clean up auxilary instances */ /* - - - - - - - - - - - - - - - - */
CData_Reset(idPcd,TRUE); /* Clear aggregation buffer */
}
/* Clean up */ /* --------------------------------- */
IDESTROY(idAux); /* Destroy auxilary data instance #1 */
IDESTROY(idPmp); /* Destroy pooling map */
IDESTROY(idPcd); /* Destroy pooled cls. raw data inst.*/
STA_PROTOCOL_FOOTER(1,"done"); /* Print protocol footer */
return O_K; /* Ok */
DLPCATCH(STA_BADCOMP) /* == Catch STA_BADCOMP exception */
IDESTROY(idAux); /* Destroy auxilary data instance #1 */
IDESTROY(idPmp); /* Destroy pooling map */
IDESTROY(idPcd); /* Destroy pooled cls. raw data inst.*/
STA_PROTOCOL_FOOTER(1,"FAILED"); /* Print protocol footer */
return NOT_EXEC; /* Not ok */
}