ROOT   Reference Guide
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitCore *
4 * @(#)root/roofitcore:$Id$
5 * Authors: *
6 * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
7 * DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
8 * *
9 * Copyright (c) 2000-2005, Regents of the University of California *
11 * *
12 * Redistribution and use in source and binary forms, *
13 * with or without modification, are permitted according to the terms *
15 *****************************************************************************/
16
17//////////////////////////////////////////////////////////////////////////////
19 \ingroup Roofitcore
20
21RooAddPdf is an efficient implementation of a sum of PDFs of the form
22
23\f[
24 \sum_{i=1}^{n} c_i \cdot \mathrm{PDF}_i
25\f]
26
27or
28\f[
29 c_1\cdot\mathrm{PDF}_1 + c_2\cdot\mathrm{PDF}_2 \; + \; ... \; + \; \left( 1-\sum_{i=1}^{n-1}c_i \right) \cdot \mathrm{PDF}_n
30\f]
31
32The first form is for extended likelihood fits, where the
33expected number of events is \f$\sum_i c_i \f$. The coefficients \f$c_i \f$
34can either be explicitly provided, or, if all components support
35extended likelihood fits, they can be calculated from the contribution
36of each PDF to the total expected number of events.
37
38In the second form, the sum of the coefficients is required to be 1 or less,
39and the coefficient of the last PDF is calculated automatically from the condition
40that the sum of all coefficients has to be 1.
41
42### Recursive coefficients
43It is also possible to parameterise the coefficients recursively
44
45\f[
46 \sum_{i=1}^n c_i \prod_{j=1}^{i-1} \left[ (1-c_j) \right] \cdot \mathrm{PDF}_i \\
47 = c_1 \cdot \mathrm{PDF}_1 + (1-c_1)\, c_2 \cdot \mathrm{PDF}_2 + \ldots + (1-c_1)\ldots(1-c_{n-1}) \cdot 1 \cdot \mathrm{PDF}_n \\
48\f]
49
50In this form the sum of the coefficients is always less than 1.0
51for all possible values of the individual coefficients between 0 and 1.
52\note Don't pass the \f$n^\mathrm{th} \f$ coefficient. It is always 1, since the normalisation condition removes one degree of freedom.
53
54RooAddPdf relies on each component PDF to be normalized and will perform
55no normalization other than calculating the proper last coefficient \f$c_n \f$, if requested.
56An (enforced) condition for this assumption is that each \f$\mathrm{PDF}_i \f$ is independent of each \f$c_i \f$.
57
58## Difference between RooAddPdf / RooRealSumFunc / RooRealSumPdf
59- RooAddPdf is a PDF of PDFs, *i.e.* its components need to be normalised and non-negative.
60- RooRealSumPdf is a PDF of functions, *i.e.*, its components can be negative, but their sum cannot be. The normalisation
61 is computed automatically, unless the PDF is extended (see above).
62- RooRealSumFunc is a sum of functions. It is neither normalised, nor need it be positive.
63
64*/
65
67
69#include "RooBatchCompute.h"
70#include "RooDataSet.h"
71#include "RooGlobalFunc.h"
72#include "RooNaNPacker.h"
73#include "RooRealProxy.h"
74#include "RooRealVar.h"
75#include "RooRealConstant.h"
76#include "RooRealIntegral.h"
78
79#include <algorithm>
80#include <memory>
81#include <sstream>
82#include <set>
83
84using namespace std;
85
87
88
89////////////////////////////////////////////////////////////////////////////////
90/// Dummy constructor
91
93 RooAbsPdf(name,title),
94 _refCoefNorm("!refCoefNorm","Reference coefficient normalization set",this,false,false),
95 _projCacheMgr(this,10),
96 _pdfList("!pdfs","List of PDFs",this),
97 _coefList("!coefficients","List of coefficients",this),
98 _coefErrCount{_errorCount}
99{
101}
102
103
105
106 // Two pdfs with the same name are only allowed in the input list if they are
107 // actually the same object.
108 using PdfInfo = std::pair<std::string,RooAbsArg*>;
109 std::set<PdfInfo> seen;
110 for(auto const& pdf : _pdfList) {
111 PdfInfo elem{pdf->GetName(), pdf};
112 auto comp = [&](PdfInfo const& p){ return p.first == elem.first && p.second != elem.second; };
113 auto found = std::find_if(seen.begin(), seen.end(), comp);
114 if(found != seen.end()) {
115 std::stringstream errorMsg;
117 << ") pdf list contains pdfs with duplicate name \"" << pdf->GetName() << "\"."
118 << std::endl;
119 coutE(InputArguments) << errorMsg.str();
120 throw std::invalid_argument(errorMsg.str().c_str());
121 }
122 seen.insert(elem);
123 }
124
125 _coefCache.resize(_pdfList.size());
126}
127
128
129////////////////////////////////////////////////////////////////////////////////
130/// Constructor with two PDFs and one coefficient
131
133 RooAbsPdf& pdf1, RooAbsPdf& pdf2, RooAbsReal& coef1) :
135{
139
141}
142
143
144////////////////////////////////////////////////////////////////////////////////
145/// Generic constructor from list of PDFs and list of coefficients.
146/// Each pdf list element (i) is paired with coefficient list element (i).
147/// The number of coefficients must be either equal to the number of PDFs,
148/// in which case extended MLL fitting is enabled, or be one less.
149///
150/// All PDFs must inherit from RooAbsPdf. All coefficients must inherit from RooAbsReal
151///
152/// If the recursiveFraction flag is true, the coefficients are interpreted as recursive
153/// coefficients as explained in the class description.
154
155RooAddPdf::RooAddPdf(const char *name, const char *title, const RooArgList& inPdfList, const RooArgList& inCoefList, bool recursiveFractions) :
157{
158 _recursive = recursiveFractions;
159
160 if (inPdfList.size()>inCoefList.size()+1 || inPdfList.size()<inCoefList.size()) {
161 std::stringstream errorMsg;
163 << ") number of pdfs and coefficients inconsistent, must have Npdf=Ncoef or Npdf=Ncoef+1." << endl ;
164 coutE(InputArguments) << errorMsg.str();
165 throw std::invalid_argument(errorMsg.str().c_str());
166 }
167
168 if (recursiveFractions && inPdfList.size()!=inCoefList.size()+1) {
169 std::stringstream errorMsg;
171 << "): Recursive fractions option can only be used if Npdf=Ncoef+1." << endl;
172 coutE(InputArguments) << errorMsg.str();
173 throw std::invalid_argument(errorMsg.str());
174 }
175
176 // Constructor with N PDFs and N or N-1 coefs
177 RooArgList partinCoefList ;
178
179 bool first(true) ;
180
181 for (auto i = 0u; i < inCoefList.size(); ++i) {
182 auto coef = dynamic_cast<RooAbsReal*>(inCoefList.at(i));
183 auto pdf = dynamic_cast<RooAbsPdf*>(inPdfList.at(i));
184 if (inPdfList.at(i) == nullptr) {
185 std::stringstream errorMsg;
187 << ") number of pdfs and coefficients inconsistent, must have Npdf=Ncoef or Npdf=Ncoef+1" << endl ;
188 coutE(InputArguments) << errorMsg.str();
189 throw std::invalid_argument(errorMsg.str());
190 }
191 if (!coef) {
192 std::stringstream errorMsg;
193 errorMsg << "RooAddPdf::RooAddPdf(" << GetName() << ") coefficient " << (coef ? coef->GetName() : "") << " is not of type RooAbsReal, ignored" << endl ;
194 coutE(InputArguments) << errorMsg.str();
195 throw std::invalid_argument(errorMsg.str());
196 }
197 if (!pdf) {
198 std::stringstream errorMsg;
199 errorMsg << "RooAddPdf::RooAddPdf(" << GetName() << ") pdf " << (pdf ? pdf->GetName() : "") << " is not of type RooAbsPdf, ignored" << endl ;
200 coutE(InputArguments) << errorMsg.str();
201 throw std::invalid_argument(errorMsg.str());
202 }
204
205 // Process recursive fraction mode separately
206 if (recursiveFractions) {
208 if (first) {
209
210 // The first fraction is the first plain fraction
211 first = false ;
213
214 } else {
215
216 // The i-th recursive fraction = (1-f1)*(1-f2)*...(fi) and is calculated from the list (f1,...,fi) by RooRecursiveFraction)
217 RooAbsReal* rfrac = new RooRecursiveFraction(Form("%s_recursive_fraction_%s",GetName(),pdf->GetName()),"Recursive Fraction",partinCoefList) ;
220
221 }
222
223 } else {
225 }
226 }
227
228 if (inPdfList.size() == inCoefList.size() + 1) {
229 auto pdf = dynamic_cast<RooAbsPdf*>(inPdfList.at(inCoefList.size()));
230
231 if (!pdf) {
232 coutE(InputArguments) << "RooAddPdf::RooAddPdf(" << GetName() << ") last argument " << inPdfList.at(inCoefList.size())->GetName() << " is not of type RooAbsPdf." << endl ;
233 throw std::invalid_argument("Last argument for RooAddPdf is not a PDF.");
234 }
236
237 // Process recursive fractions mode. Above, we verified that we don't have a last coefficient
238 if (recursiveFractions) {
239
240 // The last recursive fraction = (1-f1)*(1-f2)*...(1-fN) and is calculated from the list (f1,...,fN,1) by RooRecursiveFraction
242 RooAbsReal* rfrac = new RooRecursiveFraction(Form("%s_recursive_fraction_%s",GetName(),pdf->GetName()),"Recursive Fraction",partinCoefList) ;
245
246 // In recursive mode we always have Ncoef=Npdf, since we added it just above
247 _haveLastCoef=true ;
248 }
249
250 } else {
251 _haveLastCoef=true ;
252 }
253
255}
256
257
258////////////////////////////////////////////////////////////////////////////////
259/// Generic constructor from list of extended PDFs. There are no coefficients as the expected
260/// number of events from each components determine the relative weight of the PDFs.
261///
262/// All PDFs must inherit from RooAbsPdf.
263
266{
267 _allExtendable = true;
268
269 // Constructor with N PDFs
270 for (const auto pdfArg : inPdfList) {
271 auto pdf = dynamic_cast<const RooAbsPdf*>(pdfArg);
272
273 if (!pdf) {
274 coutE(InputArguments) << "RooAddPdf::RooAddPdf(" << GetName() << ") pdf " << (pdf ? pdf->GetName() : "") << " is not of type RooAbsPdf, ignored" << endl ;
275 continue ;
276 }
277 if (!pdf->canBeExtended()) {
278 coutE(InputArguments) << "RooAddPdf::RooAddPdf(" << GetName() << ") pdf " << pdf->GetName() << " is not extendable, ignored" << endl ;
279 continue ;
280 }
282 }
283
285}
286
287
288////////////////////////////////////////////////////////////////////////////////
289/// Copy constructor
290
292 RooAbsPdf(other,name),
293 _refCoefNorm("!refCoefNorm",this,other._refCoefNorm),
294 _refCoefRangeName((TNamed*)other._refCoefRangeName),
295 _projectCoefs(other._projectCoefs),
296 _projCacheMgr(other._projCacheMgr,this),
297 _codeReg(other._codeReg),
298 _pdfList("!pdfs",this,other._pdfList),
299 _coefList("!coefficients",this,other._coefList),
300 _haveLastCoef(other._haveLastCoef),
301 _allExtendable(other._allExtendable),
302 _recursive(other._recursive)
303{
307}
308
309
310////////////////////////////////////////////////////////////////////////////////
311/// By default the interpretation of the fraction coefficients is
312/// performed in the contextual choice of observables. This makes the
313/// shape of the p.d.f explicitly dependent on the choice of
314/// observables. This method instructs RooAddPdf to freeze the
315/// interpretation of the coefficients to be done in the given set of
316/// observables. If frozen, fractions are automatically transformed
317/// from the reference normalization set to the contextual normalization
318/// set by ratios of integrals.
319
321{
322 if (refCoefNorm.empty()) {
323 _projectCoefs = false ;
324 return ;
325 }
326 _projectCoefs = true ;
327
330
332}
333
334
335
336////////////////////////////////////////////////////////////////////////////////
337/// By default, fraction coefficients are assumed to refer to the default
338/// fit range. This makes the shape of a RooAddPdf
339/// explicitly dependent on the range of the observables. Calling this function
340/// allows for a range-independent definition of the fractions, because it
341/// ties all coefficients to the given
342/// named range. If the normalisation range is different
343/// from this reference range, the appropriate fraction coefficients
344/// are automatically calculated from the reference fractions by
345/// integrating over the ranges, and comparing these integrals.
346
348{
350 if (_refCoefRangeName) _projectCoefs = true ;
351}
352
353
354
355////////////////////////////////////////////////////////////////////////////////
356/// Retrieve cache element for the computation of the PDF normalisation.
357/// \param[in] nset Current normalisation set (integration over these variables yields 1).
358/// \param[in] iset Integration set. Variables to be integrated over (if integrations are performed).
359/// \param[in] rangeName Reference range for the integrals.
360///
361/// If a cache element does not exist, create and fill it on the fly. The cache also contains
362/// - Supplemental normalization terms (in case not all added p.d.f.s have the same observables)
363/// - Projection integrals to calculate transformed fraction coefficients when a frozen reference frame is provided
364/// - Projection integrals for similar transformations when a frozen reference range is provided.
365
367{
368
369 // Check if cache already exists
370 CacheElem* cache = (CacheElem*) _projCacheMgr.getObj(nset,iset,0,rangeName) ;
371 if (cache) {
372 return cache ;
373 }
374
375 //Create new cache
376 cache = new CacheElem ;
377
378 // *** PART 1 : Create supplemental normalization list ***
379
380 // Retrieve the combined set of dependents of this PDF ;
381 auto fullDepList = std::unique_ptr<RooArgSet>{getObservables(nset)} ;
382 if (iset) {
383 fullDepList->remove(*iset,true,true) ;
384 }
385
386 // Fill with dummy unit RRVs for now
387 for (std::size_t i = 0; i < _pdfList.size(); ++i) {
388 auto pdf = static_cast<const RooAbsPdf *>(_pdfList.at(i));
389 auto coef = static_cast<const RooAbsReal*>(_coefList.at(i));
390
392 RooArgSet supNSet(*fullDepList) ;
393
394 // Remove PDF dependents
395 if (auto pdfDeps = std::unique_ptr<RooArgSet>{pdf->getObservables(nset)}) {
396 supNSet.remove(*pdfDeps,true,true) ;
397 }
398
399 // Remove coef dependents
400 if (auto coefDeps = std::unique_ptr<RooArgSet>{coef ? coef->getObservables(nset) : nullptr}) {
401 supNSet.remove(*coefDeps,true,true) ;
402 }
403
404 RooAbsReal* snorm ;
405 auto name = std::string(GetName()) + "_" + pdf->GetName() + "_SupNorm";
406 cache->_needSupNorm = false ;
407 if (!supNSet.empty()) {
408 snorm = new RooRealIntegral(name.c_str(),"Supplemental normalization integral",RooRealConstant::value(1.0),supNSet) ;
409 cxcoutD(Caching) << "RooAddPdf " << GetName() << " making supplemental normalization set " << supNSet << " for pdf component " << pdf->GetName() << endl ;
410 cache->_needSupNorm = true ;
411 } else {
412 snorm = new RooRealVar(name.c_str(),"Unit Supplemental normalization integral",1.0) ;
413 }
415 }
416
417 if (_verboseEval>1) {
418 cxcoutD(Caching) << "RooAddPdf::syncSuppNormList(" << GetName() << ") synching supplemental normalization list for norm" << (nset?*nset:RooArgSet()) << endl ;
419 if dologD(Caching) {
420 cache->_suppNormList.Print("v") ;
421 }
422 }
423
424
425 // *** PART 2 : Create projection coefficients ***
426
427// cout << " this = " << this << " (" << GetName() << ")" << endl ;
428// cout << "projectCoefs = " << (_projectCoefs?"T":"F") << endl ;
429// cout << "_normRange.Length() = " << _normRange.Length() << endl ;
430
431 // If no projections required stop here
432 if (!_projectCoefs && !rangeName) {
433 _projCacheMgr.setObj(nset,iset,cache,RooNameReg::ptr(rangeName)) ;
434// cout << " no projection required" << endl ;
435 return cache ;
436 }
437
438
439// cout << "calculating projection" << endl ;
440
441 // Reduce iset/nset to actual dependents of this PDF
442 auto nset2 = std::unique_ptr<RooArgSet>{nset ? getObservables(nset) : new RooArgSet()} ;
443 cxcoutD(Caching) << "RooAddPdf(" << GetName() << ")::getPC nset = " << (nset?*nset:RooArgSet()) << " nset2 = " << *nset2 << endl ;
444
445 if (nset2->empty() && !_refCoefNorm.empty()) {
446 //cout << "WVE: evaluating RooAddPdf without normalization, but have reference normalization for coefficient definition" << endl ;
447
449 if (_refCoefRangeName) {
451 }
452 }
453
454
455 // Check if requested transformation is not identity
456 if (!nset2->equals(_refCoefNorm) || _refCoefRangeName !=0 || rangeName !=0 || _normRange.Length()>0) {
457
458 cxcoutD(Caching) << "ALEX: RooAddPdf::syncCoefProjList(" << GetName() << ") projecting coefficients from "
459 << *nset2 << (rangeName?":":"") << (rangeName?rangeName:"")
460 << " to " << ((!_refCoefNorm.empty())?_refCoefNorm:*nset2) << (_refCoefRangeName?":":"") << (_refCoefRangeName?RooNameReg::str(_refCoefRangeName):"") << endl ;
461
462 // Recalculate projection integrals of PDFs
463 for (auto arg : _pdfList) {
464 auto thePdf = static_cast<const RooAbsPdf*>(arg);
465
466 // Calculate projection integral
467 RooAbsReal* pdfProj ;
468 if (!nset2->equals(_refCoefNorm)) {
469 pdfProj = thePdf->createIntegral(*nset2,_refCoefNorm,_normRange.Length()>0?_normRange.Data():0) ;
470 pdfProj->setOperMode(operMode()) ;
471 cxcoutD(Caching) << "RooAddPdf(" << GetName() << ")::getPC nset2(" << *nset2 << ")!=_refCoefNorm(" << _refCoefNorm << ") --> pdfProj = " << pdfProj->GetName() << endl ;
472 } else {
473 auto name = std::string(GetName()) + "_" + thePdf->GetName() + "_ProjectNorm";
474 pdfProj = new RooRealVar(name.c_str(),"Unit Projection normalization integral",1.0) ;
475 cxcoutD(Caching) << "RooAddPdf(" << GetName() << ")::getPC nset2(" << *nset2 << ")==_refCoefNorm("
476 << _refCoefNorm << ") --> pdfProj = " << pdfProj->GetName() << std::endl;
477 }
478
480 cxcoutD(Caching) << " RooAddPdf::syncCoefProjList(" << GetName() << ") PP = " << pdfProj->GetName() << endl ;
481
482 // Calculation optional supplemental normalization term
483 RooArgSet supNormSet(_refCoefNorm) ;
484 auto deps = std::unique_ptr<RooArgSet>{thePdf->getParameters(RooArgSet())} ;
485 supNormSet.remove(*deps,true,true) ;
486
487 RooAbsReal* snorm ;
488 auto name = std::string(GetName()) + "_" + thePdf->GetName() + "_ProjSupNorm";
489 if (!supNormSet.empty() && !nset2->equals(_refCoefNorm) ) {
490 snorm = new RooRealIntegral(name.c_str(),"Projection Supplemental normalization integral",
491 RooRealConstant::value(1.0),supNormSet) ;
492 } else {
493 snorm = new RooRealVar(name.c_str(),"Unit Projection Supplemental normalization integral",1.0) ;
494 }
495 cxcoutD(Caching) << " RooAddPdf::syncCoefProjList(" << GetName() << ") SN = " << snorm->GetName() << endl ;
497
498 // Calculate reference range adjusted projection integral
499 RooAbsReal* rangeProj1 ;
500
501 // cout << "ALEX >>>> RooAddPdf(" << GetName() << ")::getPC _refCoefRangeName WVE = "
502// <<(_refCoefRangeName?":":"") << (_refCoefRangeName?RooNameReg::str(_refCoefRangeName):"")
503// <<" _refCoefRangeName AK = " << (_refCoefRangeName?_refCoefRangeName->GetName():"")
504// << " && _refCoefNorm" << _refCoefNorm << " with size = _refCoefNorm.size() " << _refCoefNorm.size() << endl ;
505
506 // Check if _refCoefRangeName is identical to default range for all observables,
507 // If so, substitute by unit integral
508
509 // ----------
510 auto tmpObs = std::unique_ptr<RooArgSet>{thePdf->getObservables(_refCoefNorm)} ;
511 bool allIdent = true ;
512 for (auto const& obsArg : *tmpObs) {
513 RooRealVar* rvarg = dynamic_cast<RooRealVar*>(obsArg) ;
514 if (rvarg) {
515 if (rvarg->getMin(RooNameReg::str(_refCoefRangeName))!=rvarg->getMin() ||
516 rvarg->getMax(RooNameReg::str(_refCoefRangeName))!=rvarg->getMax()) {
517 allIdent=false ;
518 }
519 }
520 }
521 // -------------
522
523 if (_refCoefRangeName && !_refCoefNorm.empty() && !allIdent) {
524
525
526 auto tmp = std::unique_ptr<RooArgSet>{thePdf->getObservables(_refCoefNorm)} ;
527 rangeProj1 = thePdf->createIntegral(*tmp,*tmp,RooNameReg::str(_refCoefRangeName)) ;
528
529 //rangeProj1->setOperMode(operMode()) ;
530
531 } else {
532
533 auto theName = std::string(GetName()) + "_" + thePdf->GetName() + "_RangeNorm1";
534 rangeProj1 = new RooRealVar(theName.c_str(),"Unit range normalization integral",1.0) ;
535
536 }
537 cxcoutD(Caching) << " RooAddPdf::syncCoefProjList(" << GetName() << ") R1 = " << rangeProj1->GetName() << endl ;
539
540
541 // Calculate range adjusted projection integral
542 RooAbsReal* rangeProj2 ;
543 cxcoutD(Caching) << "RooAddPdf::syncCoefProjList(" << GetName() << ") rangename = " << (rangeName?rangeName:"<null>")
544 << " nset = " << (nset?*nset:RooArgSet()) << endl ;
545 if (rangeName && !_refCoefNorm.empty()) {
546
547 rangeProj2 = thePdf->createIntegral(_refCoefNorm,_refCoefNorm,rangeName) ;
548 //rangeProj2->setOperMode(operMode()) ;
549
550 } else if (_normRange.Length()>0) {
551
552 auto tmp = std::unique_ptr<RooArgSet>{thePdf->getObservables(_refCoefNorm)} ;
553 rangeProj2 = thePdf->createIntegral(*tmp,*tmp,_normRange.Data()) ;
554
555 } else {
556
557 auto theName = std::string(GetName()) + "_" + thePdf->GetName() + "_RangeNorm2";
558 rangeProj2 = new RooRealVar(theName.c_str(),"Unit range normalization integral",1.0) ;
559
560 }
561 cxcoutD(Caching) << " RooAddPdf::syncCoefProjList(" << GetName() << ") R2 = " << rangeProj2->GetName() << endl ;
563
564 }
565
566 }
567
568 _projCacheMgr.setObj(nset,iset,cache,RooNameReg::ptr(rangeName)) ;
569
570 return cache ;
571}
572
573
574////////////////////////////////////////////////////////////////////////////////
575/// Update the coefficient values in the given cache element: calculate new remainder
576/// fraction, normalize fractions obtained from extended ML terms to unity, and
577/// multiply the various range and dimensional corrections needed in the
578/// current use context.
579
580void RooAddPdf::updateCoefficients(CacheElem& cache, const RooArgSet* nset) const
581{
582 // Since this function updates the cache, it obviously needs write access:
583 auto& myCoefCache = const_cast<std::vector<double>&>(_coefCache);
584 myCoefCache.resize(_haveLastCoef ? _coefList.size() : _pdfList.size(), 0.);
585
586 // Straight coefficients
587 if (_allExtendable) {
588
589 // coef[i] = expectedEvents[i] / SUM(expectedEvents)
590 double coefSum(0) ;
591 std::size_t i = 0;
592 for (auto arg : _pdfList) {
593 auto pdf = static_cast<RooAbsPdf*>(arg);
594 myCoefCache[i] = pdf->expectedEvents(!_refCoefNorm.empty()?&_refCoefNorm:nset) ;
595 coefSum += myCoefCache[i] ;
596 i++ ;
597 }
598
599 if (coefSum==0.) {
600 coutW(Eval) << "RooAddPdf::updateCoefCache(" << GetName() << ") WARNING: total number of expected events is 0" << endl ;
601 } else {
602 for (std::size_t j=0; j < _pdfList.size(); j++) {
603 myCoefCache[j] /= coefSum ;
604 }
605 }
606
607 } else {
608 if (_haveLastCoef) {
609
610 // coef[i] = coef[i] / SUM(coef)
611 double coefSum(0) ;
612 std::size_t i=0;
613 for (auto coefArg : _coefList) {
614 auto coef = static_cast<RooAbsReal*>(coefArg);
615 myCoefCache[i] = coef->getVal(nset) ;
616 coefSum += myCoefCache[i++];
617 }
618 if (coefSum==0.) {
619 coutW(Eval) << "RooAddPdf::updateCoefCache(" << GetName() << ") WARNING: sum of coefficients is zero 0" << endl ;
620 } else {
621 const double invCoefSum = 1./coefSum;
622 for (std::size_t j=0; j < _coefList.size(); j++) {
623 myCoefCache[j] *= invCoefSum;
624 }
625 }
626 } else {
627
628 // coef[i] = coef[i] ; coef[n] = 1-SUM(coef[0...n-1])
629 double lastCoef(1) ;
630 std::size_t i=0;
631 for (auto coefArg : _coefList) {
632 auto coef = static_cast<RooAbsReal*>(coefArg);
633 myCoefCache[i] = coef->getVal(nset) ;
634 lastCoef -= myCoefCache[i++];
635 }
636 myCoefCache[_coefList.size()] = lastCoef ;
637
638 // Treat coefficient degeneration
639 const float coefDegen = lastCoef < 0. ? -lastCoef : (lastCoef > 1. ? lastCoef - 1. : 0.);
640 if (coefDegen > 1.E-5) {
641 myCoefCache[_coefList.size()] = RooNaNPacker::packFloatIntoNaN(100.f*coefDegen);
642
643 std::stringstream msg;
644 if (_coefErrCount-->0) {
645 msg << "RooAddPdf::updateCoefCache(" << GetName()
646 << " WARNING: sum of PDF coefficients not in range [0-1], value="
647 << 1-lastCoef ;
648 if (_coefErrCount==0) {
649 msg << " (no more will be printed)" ;
650 }
651 coutW(Eval) << msg.str() << std::endl;
652 }
653 }
654 }
655 }
656
657
658 // Stop here if not projection is required or needed
659 if ((!_projectCoefs && _normRange.Length()==0) || cache._projList.empty()) {
660 return ;
661 }
662
663 // Adjust coefficients for given projection
664 double coefSum(0) ;
665 {
667
668 for (std::size_t i = 0; i < _pdfList.size(); i++) {
669
670 RooAbsReal* pp = ((RooAbsReal*)cache._projList.at(i)) ;
671 RooAbsReal* sn = ((RooAbsReal*)cache._suppProjList.at(i)) ;
672 RooAbsReal* r1 = ((RooAbsReal*)cache._refRangeProjList.at(i)) ;
673 RooAbsReal* r2 = ((RooAbsReal*)cache._rangeProjList.at(i)) ;
674
675 double proj = pp->getVal()/sn->getVal()*(r2->getVal()/r1->getVal()) ;
676
677 myCoefCache[i] *= proj ;
678 coefSum += myCoefCache[i] ;
679 }
680 }
681
682
684 for (std::size_t i=0; i < _pdfList.size(); ++i) {
685 ccoutD(Caching) << " ALEX: POST-SYNC coef[" << i << "] = " << myCoefCache[i]
686 << " ( _coefCache[i]/coefSum = " << myCoefCache[i]*coefSum << "/" << coefSum << " ) "<< endl ;
687 }
688 }
689
690 if (coefSum==0.) {
691 coutE(Eval) << "RooAddPdf::updateCoefCache(" << GetName() << ") sum of coefficients is zero." << endl ;
692 }
693
694 for (std::size_t i=0; i < _pdfList.size(); i++) {
695 myCoefCache[i] /= coefSum ;
696 }
697
698}
699
700////////////////////////////////////////////////////////////////////////////////
701/// Look up projection cache and per-PDF norm sets. If a PDF doesn't have a special
702/// norm set, use the defaultNorm. If defaultNorm == nullptr, use the member
703/// _normSet.
705
706 // Treat empty normalization set and nullptr the same way.
707 if(nset && nset->empty()) nset = nullptr;
708
709 if (nset == nullptr) {
710 if (!_refCoefNorm.empty()) {
711 nset = &_refCoefNorm ;
712 }
713 }
714
715 // A RooAddPdf needs to have a normalization set defined, otherwise its
716 // coefficient will not be uniquely defined. Its shape depends on the
717 // normalization provided. Un-normalized calls to RooAddPdf can happen in
718 // Roofit, when printing the pdf's or when computing integrals. In these case,
719 // if the pdf has a normalization set previously defined (i.e. stored as a
720 // datamember in _copyOfLastNormSet) it should use it by default when the pdf
721 // is evaluated without passing a normalizations set (in pdf->getVal(nullptr) )
722 // In the case of no pre-defined normalization set exists, a warning will be
723 // produced, since the obtained value will be arbitrary. Note that to avoid
724 // unnecessary warning messages, when calling RooAbsPdf::printValue or
725 // RooAbsPdf::graphVizTree, the printing of the warning messages for the
726 // RooFit::Eval topic is explicitly disabled.
727 {
728 // If nset is still nullptr, get the pointer to a copy of the last-used
729 // normalization set. It nset is not nullptr, check whether the copy of
730 // the last-used normalization set needs an update.
731 if(nset == nullptr) {
732 nset = _copyOfLastNormSet.get();
733 } else if(nset->uniqueId() != _idOfLastUsedNormSet) {
734 _copyOfLastNormSet = std::make_unique<const RooArgSet>(*nset);
736 }
737
738 // If nset is STILL nullptr, print a warning.
739 if (nset == nullptr) {
740 coutW(Eval) << "Evaluating RooAddPdf without a defined normalization set. This can lead to ambiguos "
741 "coefficients definition and incorrect results."
742 << " Use RooAddPdf::fixCoefNormalization(nset) to provide a normalization set for "
744 << std::endl;
745 }
746 }
747
748
749 CacheElem* cache = getProjCache(nset) ;
750 updateCoefficients(*cache,nset) ;
751
752 return {nset, cache};
753}
754
755
756////////////////////////////////////////////////////////////////////////////////
757/// Calculate and return the current value
758
760{
761 auto normAndCache = getNormAndCache(normSet);
762 const RooArgSet* nset = normAndCache.first;
763 CacheElem* cache = normAndCache.second;
764
765 // Do running sum of coef/pdf pairs, calculate lastCoef.
766 double value(0);
767
768 for (unsigned int i=0; i < _pdfList.size(); ++i) {
769 const auto& pdf = static_cast<RooAbsPdf&>(_pdfList[i]);
770 double snormVal = 1.;
771 if (cache->_needSupNorm) {
772 snormVal = ((RooAbsReal*)cache->_suppNormList.at(i))->getVal();
773 }
774
775 double pdfVal = pdf.getVal(nset);
776 if (pdf.isSelectedComp()) {
777 value += pdfVal*_coefCache[i]/snormVal;
778 }
779 }
780
781 return value;
782}
783
784
785////////////////////////////////////////////////////////////////////////////////
786/// Compute addition of PDFs in batches.
787void RooAddPdf::computeBatch(cudaStream_t* stream, double* output, size_t nEvents, RooFit::Detail::DataMap const& dataMap) const
788{
791 CacheElem* cache = getNormAndCache(nullptr).second;
792 for (unsigned int pdfNo = 0; pdfNo < _pdfList.size(); ++pdfNo)
793 {
794 auto pdf = static_cast<RooAbsPdf*>(&_pdfList[pdfNo]);
795 if (pdf->isSelectedComp())
796 {
797 pdfs.push_back(dataMap.at(pdf));
798 coefs.push_back(_coefCache[pdfNo] / (cache->_needSupNorm ?
799 static_cast<RooAbsReal*>(cache->_suppNormList.at(pdfNo))->getVal() : 1) );
800 }
801 }
803 dispatch->compute(stream, RooBatchCompute::AddPdf, output, nEvents, pdfs, coefs);
804}
805
806
807////////////////////////////////////////////////////////////////////////////////
808/// Reset error counter to given value, limiting the number
809/// of future error messages for this pdf to 'resetValue'
810
812{
814 _coefErrCount = resetValue ;
815}
816
817
818
819////////////////////////////////////////////////////////////////////////////////
820/// Check if PDF is valid for given normalization set.
821/// Coeffient and PDF must be non-overlapping, but pdf-coefficient
822/// pairs may overlap each other
823
825{
826 bool ret(false) ;
827
828 // There may be fewer coefficients than PDFs.
829 std::size_t end = std::min(_pdfList.size(), _coefList.size());
830 for (std::size_t i = 0; i < end; ++i) {
831 auto pdf = static_cast<const RooAbsPdf *>(_pdfList.at(i));
832 auto coef = static_cast<const RooAbsReal*>(_coefList.at(i));
833 if (pdf->observableOverlaps(nset,*coef)) {
834 coutE(InputArguments) << "RooAddPdf::checkObservables(" << GetName() << "): ERROR: coefficient " << coef->GetName()
835 << " and PDF " << pdf->GetName() << " have one or more dependents in common" << endl ;
836 ret = true ;
837 }
838 }
839
840 return ret ;
841}
842
843
844////////////////////////////////////////////////////////////////////////////////
845/// Determine which part (if any) of given integral can be performed analytically.
846/// If any analytical integration is possible, return integration scenario code
847///
848/// RooAddPdf queries each component PDF for its analytical integration capability of the requested
849/// set ('allVars'). It finds the largest common set of variables that can be integrated
850/// by all components. If such a set exists, it reconfirms that each component is capable of
851/// analytically integrating the common set, and combines the components individual integration
852/// codes into a single integration code valid for RooAddPdf.
853
855 const RooArgSet* normSet, const char* rangeName) const
856{
857
858 RooArgSet allAnalVars(*std::unique_ptr<RooArgSet>{getObservables(allVars)}) ;
859
860 Int_t n(0) ;
861
862 // First iteration, determine what each component can integrate analytically
863 for (const auto pdfArg : _pdfList) {
864 auto pdf = static_cast<const RooAbsPdf *>(pdfArg);
865 RooArgSet subAnalVars ;
866 pdf->getAnalyticalIntegralWN(allVars,subAnalVars,normSet,rangeName) ;
867
868 // Observables that cannot be integrated analytically by this component are dropped from the common list
869 for (const auto arg : allVars) {
870 if (!subAnalVars.find(arg->GetName()) && pdf->dependsOn(*arg)) {
871 allAnalVars.remove(*arg,true,true) ;
872 }
873 }
874 n++ ;
875 }
876
877 // If no observables can be integrated analytically, return code 0 here
878 if (allAnalVars.empty()) {
879 return 0 ;
880 }
881
882
883 // Now retrieve codes for integration over common set of analytically integrable observables for each component
884 n=0 ;
885 std::vector<Int_t> subCode(_pdfList.size());
886 bool allOK(true) ;
887 for (const auto arg : _pdfList) {
888 auto pdf = static_cast<const RooAbsPdf *>(arg);
889 RooArgSet subAnalVars ;
890 auto allAnalVars2 = std::unique_ptr<RooArgSet>{pdf->getObservables(allAnalVars)} ;
891 subCode[n] = pdf->getAnalyticalIntegralWN(*allAnalVars2,subAnalVars,normSet,rangeName) ;
892 if (subCode[n]==0 && !allAnalVars2->empty()) {
893 coutE(InputArguments) << "RooAddPdf::getAnalyticalIntegral(" << GetName() << ") WARNING: component PDF " << pdf->GetName()
894 << " advertises inconsistent set of integrals (e.g. (X,Y) but not X or Y individually."
895 << " Distributed analytical integration disabled. Please fix PDF" << endl ;
896 allOK = false ;
897 }
898 n++ ;
899 }
900 if (!allOK) {
901 return 0 ;
902 }
903
904 // Mare all analytically integrated observables as such
906
907 // Store set of variables analytically integrated
908 RooArgSet* intSet = new RooArgSet(allAnalVars) ;
909 Int_t masterCode = _codeReg.store(subCode,intSet)+1 ;
910
911 return masterCode ;
912}
913
914
915
916////////////////////////////////////////////////////////////////////////////////
917/// Return analytical integral defined by given scenario code
918
919double RooAddPdf::analyticalIntegralWN(Int_t code, const RooArgSet* normSet, const char* rangeName) const
920{
921 // WVE needs adaptation to handle new rangeName feature
922 if (code==0) {
923 return getVal(normSet) ;
924 }
925
926 // Retrieve analytical integration subCodes and set of observabels integrated over
927 RooArgSet* intSet ;
928 const std::vector<Int_t>& subCode = _codeReg.retrieve(code-1,intSet) ;
929 if (subCode.empty()) {
930 coutE(InputArguments) << "RooAddPdf::analyticalIntegral(" << GetName() << "): ERROR unrecognized integration code, " << code << endl ;
931 assert(0) ;
932 }
933
934 cxcoutD(Caching) << "RooAddPdf::aiWN(" << GetName() << ") calling getProjCache with nset = " << (normSet?*normSet:RooArgSet()) << endl ;
935
936 if ((normSet==0 || normSet->empty()) && !_refCoefNorm.empty()) {
937// cout << "WVE integration of RooAddPdf without normalization, but have reference set, using ref set for normalization" << endl ;
938 normSet = &_refCoefNorm ;
939 }
940
941 CacheElem* cache = getProjCache(normSet,intSet,0) ; // WVE rangename here?
942 updateCoefficients(*cache,normSet) ;
943
944 // Calculate the current value of this object
945 double value(0) ;
946
947 // Do running sum of coef/pdf pairs, calculate lastCoef.
948 double snormVal ;
949
950 //cout << "ROP::aIWN updateCoefCache with rangeName = " << (rangeName?rangeName:"<null>") << endl ;
951 RooArgList* snormSet = (!cache->_suppNormList.empty()) ? &cache->_suppNormList : nullptr ;
952 for (std::size_t i = 0; i < _pdfList.size(); ++i ) {
953 auto pdf = static_cast<const RooAbsPdf*>(_pdfList.at(i));
954
955 if (_coefCache[i]) {
956 snormVal = snormSet ? ((RooAbsReal*) cache->_suppNormList.at(i))->getVal() : 1.0 ;
957
958 // WVE swap this?
959 double val = pdf->analyticalIntegralWN(subCode[i],normSet,rangeName) ;
960 if (pdf->isSelectedComp()) {
961 value += val*_coefCache[i]/snormVal ;
962 }
963 }
964 }
965
966 return value ;
967}
968
969
970
971////////////////////////////////////////////////////////////////////////////////
972/// Return the number of expected events, which is either the sum of all coefficients
973/// or the sum of the components extended terms, multiplied with the fraction that
974/// is in the current range w.r.t the reference range
975
977{
978 double expectedTotal{0.0};
979
980 cxcoutD(Caching) << "RooAddPdf::expectedEvents(" << GetName() << ") calling getProjCache with nset = " << (nset?*nset:RooArgSet()) << endl ;
981 CacheElem& cache = *getProjCache(nset) ;
982 updateCoefficients(cache,nset) ;
983
984 if (!cache._rangeProjList.empty()) {
985
986 for (std::size_t i = 0; i < _pdfList.size(); ++i) {
987 auto const& r1 = static_cast<RooAbsReal&>(cache._refRangeProjList[i]);
988 auto const& r2 = static_cast<RooAbsReal&>(cache._rangeProjList[i]);
989 double ncomp = _allExtendable ? static_cast<RooAbsPdf&>(_pdfList[i]).expectedEvents(nset)
990 : static_cast<RooAbsReal&>(_coefList[i]).getVal(nset);
991 expectedTotal += (r2.getVal()/r1.getVal()) * ncomp ;
992
993 }
994
995 } else {
996
997 if (_allExtendable) {
998 for(auto const& arg : _pdfList) {
999 expectedTotal += static_cast<RooAbsPdf*>(arg)->expectedEvents(nset) ;
1000 }
1001 } else {
1002 for(auto const& arg : _coefList) {
1003 expectedTotal += static_cast<RooAbsReal*>(arg)->getVal(nset) ;
1004 }
1005 }
1006
1007 }
1008 return expectedTotal ;
1009}
1010
1011
1012
1013////////////////////////////////////////////////////////////////////////////////
1014/// Interface function used by test statistics to freeze choice of observables
1015/// for interpretation of fraction coefficients
1016
1017void RooAddPdf::selectNormalization(const RooArgSet* depSet, bool force)
1018{
1019
1020 if (!force && !_refCoefNorm.empty()) {
1021 return ;
1022 }
1023
1024 if (!depSet) {
1026 return ;
1027 }
1028
1029 fixCoefNormalization(*std::unique_ptr<RooArgSet>{getObservables(depSet)}) ;
1030}
1031
1032
1033
1034////////////////////////////////////////////////////////////////////////////////
1035/// Interface function used by test statistics to freeze choice of range
1036/// for interpretation of fraction coefficients
1037
1038void RooAddPdf::selectNormalizationRange(const char* rangeName, bool force)
1039{
1040 if (!force && _refCoefRangeName) {
1041 return ;
1042 }
1043
1044 fixCoefRange(rangeName) ;
1045}
1046
1047
1048
1049////////////////////////////////////////////////////////////////////////////////
1050/// Return specialized context to efficiently generate toy events from RooAddPdfs
1051/// return RooAbsPdf::genContext(vars,prototype,auxProto,verbose) ; // WVE DEBUG
1052
1054 const RooArgSet* auxProto, bool verbose) const
1055{
1057}
1058
1059
1060
1061////////////////////////////////////////////////////////////////////////////////
1062/// List all RooAbsArg derived contents in this cache element
1063
1065{
1066 RooArgList allNodes;
1071
1072 return allNodes ;
1073}
1074
1075
1076
1077////////////////////////////////////////////////////////////////////////////////
1078/// Loop over components for plot sampling hints and merge them if there are multiple
1079
1080std::list<double>* RooAddPdf::plotSamplingHint(RooAbsRealLValue& obs, double xlo, double xhi) const
1081{
1082 std::unique_ptr<std::list<double>> sumHint = nullptr ;
1083 bool needClean = false;
1084
1085 // Loop over components pdf
1086 for (const auto arg : _pdfList) {
1087 auto pdf = static_cast<const RooAbsPdf*>(arg);
1088
1089 std::unique_ptr<std::list<double>> pdfHint{pdf->plotSamplingHint(obs,xlo,xhi)} ;
1090
1091 // Process hint
1092 if (pdfHint) {
1093 if (!sumHint) {
1094
1095 // If this is the first hint, then just save it
1096 sumHint = std::move(pdfHint) ;
1097
1098 } else {
1099
1100 auto newSumHint = std::make_unique<std::list<double>>(sumHint->size()+pdfHint->size());
1101
1102 // Merge hints into temporary array
1103 merge(pdfHint->begin(),pdfHint->end(),sumHint->begin(),sumHint->end(),newSumHint->begin()) ;
1104
1105 // Copy merged array without duplicates to new sumHintArrau
1106 sumHint = std::move(newSumHint) ;
1107 needClean = true ;
1108
1109 }
1110 }
1111 }
1112 if (needClean) {
1113 sumHint->erase(std::unique(sumHint->begin(),sumHint->end()), sumHint->end()) ;
1114 }
1115
1116 return sumHint.release() ;
1117}
1118
1119
1120////////////////////////////////////////////////////////////////////////////////
1121/// Loop over components for plot sampling hints and merge them if there are multiple
1122
1123std::list<double>* RooAddPdf::binBoundaries(RooAbsRealLValue& obs, double xlo, double xhi) const
1124{
1125 std::unique_ptr<list<double>> sumBinB = nullptr ;
1126 bool needClean = false;
1127
1128 // Loop over components pdf
1129 for (auto arg : _pdfList) {
1130 auto pdf = static_cast<const RooAbsPdf *>(arg);
1131 std::unique_ptr<list<double>> pdfBinB{pdf->binBoundaries(obs,xlo,xhi)};
1132
1133 // Process hint
1134 if (pdfBinB) {
1135 if (!sumBinB) {
1136
1137 // If this is the first hint, then just save it
1138 sumBinB = std::move(pdfBinB) ;
1139
1140 } else {
1141
1142 auto newSumBinB = std::make_unique<list<double>>(sumBinB->size()+pdfBinB->size()) ;
1143
1144 // Merge hints into temporary array
1145 merge(pdfBinB->begin(),pdfBinB->end(),sumBinB->begin(),sumBinB->end(),newSumBinB->begin()) ;
1146
1147 // Copy merged array without duplicates to new sumBinBArrau
1148 sumBinB = std::move(newSumBinB) ;
1149 needClean = true ;
1150 }
1151 }
1152 }
1153
1154 // Remove consecutive duplicates
1155 if (needClean) {
1156 sumBinB->erase(std::unique(sumBinB->begin(),sumBinB->end()), sumBinB->end()) ;
1157 }
1158
1159 return sumBinB.release() ;
1160}
1161
1162
1163////////////////////////////////////////////////////////////////////////////////
1164/// If all components that depend on obs are binned, so is their sum.
1166{
1167 for (const auto arg : _pdfList) {
1168 auto pdf = static_cast<const RooAbsPdf*>(arg);
1169 if (pdf->dependsOn(obs) && !pdf->isBinnedDistribution(obs)) {
1170 return false ;
1171 }
1172 }
1173
1174 return true ;
1175}
1176
1177
1178////////////////////////////////////////////////////////////////////////////////
1179/// Label OK'ed components of a RooAddPdf with cache-and-track
1180
1182{
1183 RooFIter aiter = pdfList().fwdIterator() ;
1184 RooAbsArg* aarg ;
1185 while ((aarg=aiter.next())) {
1186 if (aarg->canNodeBeCached()==Always) {
1188 //cout << "tracking node RooAddPdf component " << aarg->IsA()->GetName() << "::" << aarg->GetName() << endl ;
1189 }
1190 }
1191}
1192
1193
1194
1195////////////////////////////////////////////////////////////////////////////////
1196/// Customized printing of arguments of a RooAddPdf to more intuitively reflect the contents of the
1197/// product operator construction
1198
1200{
1201 bool first(true) ;
1202
1203 if (!_coefList.empty()) {
1204 for (std::size_t i = 0; i < _pdfList.size(); ++i ) {
1205 const RooAbsArg * coef = _coefList.at(i);
1206 const RooAbsArg * pdf = _pdfList.at(i);
1207 if (!first) {
1208 os << " + " ;
1209 } else {
1210 first = false ;
1211 }
1212
1213 if (i < _coefList.size()) {
1214 os << coef->GetName() << " * " << pdf->GetName();
1215 } else {
1216 os << "[%] * " << pdf->GetName();
1217 }
1218 }
1219 } else {
1220
1221 for (const auto pdf : _pdfList) {
1222 if (!first) {
1223 os << " + " ;
1224 } else {
1225 first = false ;
1226 }
1227 os << pdf->GetName() ;
1228 }
1229 }
1230
1231 os << " " ;
1232}
#define cxcoutD(a)
Definition: RooMsgService.h:85
#define coutW(a)
Definition: RooMsgService.h:36
#define dologD(a)
Definition: RooMsgService.h:69
#define coutE(a)
Definition: RooMsgService.h:37
#define ccoutD(a)
Definition: RooMsgService.h:41
#define TRACE_CREATE
Definition: RooTrace.h:23
#define ClassImp(name)
Definition: Rtypes.h:375
winID h TVirtualViewer3D TVirtualGLPainter p
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void value
char name[80]
Definition: TGX11.cxx:110
char * Form(const char *fmt,...)
Formats a string in a circular formatting buffer.
Definition: TString.cxx:2447
const std::vector< Int_t > & retrieve(Int_t masterCode) const
Retrieve the array of integer codes associated with the given master code.
Int_t store(const std::vector< Int_t > &codeList, RooArgSet *set1=0, RooArgSet *set2=0, RooArgSet *set3=0, RooArgSet *set4=0)
Store given arrays of integer codes, and up to four RooArgSets in the registry (each setX pointer may...
RooAbsArg is the common abstract base class for objects that represent a value and a "shape" in RooFi...
Definition: RooAbsArg.h:77
Set the operation mode of this node.
Definition: RooAbsArg.cxx:1876
virtual CacheMode canNodeBeCached() const
Definition: RooAbsArg.h:435
RooArgSet * getObservables(const RooArgSet &set, bool valueOnly=true) const
Given a set of possible observables, return the observables that this PDF depends on.
Definition: RooAbsArg.h:317
friend class RooArgSet
Definition: RooAbsArg.h:648
Take ownership of the contents of 'comps'.
Definition: RooAbsArg.cxx:2275
bool dependsOn(const RooAbsCollection &serverList, const RooAbsArg *ignoreArg=0, bool valueOnly=false) const
Test whether we depend on (ie, are served by) any object in the specified collection.
Definition: RooAbsArg.cxx:835
OperMode operMode() const
Query the operation mode of this node.
Definition: RooAbsArg.h:507
virtual bool addOwned(RooAbsArg &var, bool silent=false)
Add an argument and transfer the ownership to the collection.
virtual bool remove(const RooAbsArg &var, bool silent=false, bool matchByNameOnly=false)
Remove the specified argument from our list.
bool empty() const
void Print(Option_t *options=0) const override
This method must be overridden when a class wants to print itself.
const char * GetName() const override
Returns name of object.
virtual bool add(const RooAbsArg &var, bool silent=false)
Add the specified argument to list.
RooFIter fwdIterator() const
One-time forward iterator.
Storage_t::size_type size() const
RooAbsArg * first() const
RooAbsArg * find(const char *name) const
Find object with given name in list.
RooAbsGenContext is the abstract base class for generator contexts of RooAbsPdf objects.
friend class CacheElem
The cache manager.
Definition: RooAbsPdf.h:366
virtual void resetErrorCounters(Int_t resetValue=10)
Reset error counter to given value, limiting the number of future error messages for this pdf to 'res...
Definition: RooAbsPdf.cxx:604
virtual double expectedEvents(const RooArgSet *nset) const
Return expected number of events to be used in calculation of extended likelihood.
Definition: RooAbsPdf.cxx:3231
TString _normRange
Normalization range.
Definition: RooAbsPdf.h:392
friend class RooRealIntegral
Definition: RooAbsPdf.h:346
Int_t _errorCount
Number of errors remaining to print.
Definition: RooAbsPdf.h:384
static Int_t _verboseEval
Definition: RooAbsPdf.h:347
RooAbsRealLValue is the common abstract base class for objects that represent a real value that may a...
virtual double getMax(const char *name=0) const
Get maximum of currently defined range.
virtual double getMin(const char *name=0) const
Get minimum of currently defined range.
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:64
virtual std::list< double > * binBoundaries(RooAbsRealLValue &obs, double xlo, double xhi) const
Retrieve bin boundaries if this distribution is binned in obs.
double getVal(const RooArgSet *normalisationSet=nullptr) const
Evaluate object.
Definition: RooAbsReal.h:94
RooAbsReal * createIntegral(const RooArgSet &iset, const RooCmdArg &arg1, const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none(), const RooCmdArg &arg6=RooCmdArg::none(), const RooCmdArg &arg7=RooCmdArg::none(), const RooCmdArg &arg8=RooCmdArg::none()) const
Create an object that represents the integral of the function over one or more observables listed in ...
Definition: RooAbsReal.cxx:553
virtual std::list< double > * plotSamplingHint(RooAbsRealLValue &obs, double xlo, double xhi) const
Interface for returning an optional hint for initial sampling points when constructing a curve projec...
RooArgList _rangeProjList
Range integrals to be multiplied with coefficients (target range)
RooArgList _refRangeProjList
Range integrals to be multiplied with coefficients (reference range)
RooArgList _projList
Projection integrals to be multiplied with coefficients.
RooArgList _suppNormList
Supplemental normalization list.
RooArgList _suppProjList
Projection integrals to be multiplied with coefficients for supplemental normalization terms.
bool _needSupNorm
Does the above list contain any non-unit entries?
RooArgList containedArgs(Action) override
List all RooAbsArg derived contents in this cache element.
RooAddPdf is an efficient implementation of a sum of PDFs of the form.
RooListProxy _coefList
List of coefficients.
RooAbsGenContext * genContext(const RooArgSet &vars, const RooDataSet *prototype=0, const RooArgSet *auxProto=0, bool verbose=false) const override
Return specialized context to efficiently generate toy events from RooAddPdfs return RooAbsPdf::genCo...
bool _allExtendable
Flag indicating if all PDF components are extendable.
RooAICRegistry _codeReg
! Registry of component analytical integration codes
RooFit::UniqueId< RooArgSet >::Value_t _idOfLastUsedNormSet
!
std::pair< const RooArgSet *, CacheElem * > getNormAndCache(const RooArgSet *nset) const
Look up projection cache and per-PDF norm sets.
std::unique_ptr< const RooArgSet > _copyOfLastNormSet
!
Int_t _coefErrCount
! Coefficient error counter
bool _haveLastCoef
Flag indicating if last PDFs coefficient was supplied in the ctor.
Int_t getAnalyticalIntegralWN(RooArgSet &allVars, RooArgSet &numVars, const RooArgSet *normSet, const char *rangeName=0) const override
Determine which part (if any) of given integral can be performed analytically.
void updateCoefficients(CacheElem &cache, const RooArgSet *nset) const
Update the coefficient values in the given cache element: calculate new remainder fraction,...
void printMetaArgs(std::ostream &os) const override
Customized printing of arguments of a RooAddPdf to more intuitively reflect the contents of the produ...
CacheElem * getProjCache(const RooArgSet *nset, const RooArgSet *iset=0, const char *rangeName=0) const
Manager of cache with coefficient projections and transformations.
void selectNormalization(const RooArgSet *depSet=0, bool force=false) override
Interface function used by test statistics to freeze choice of observables for interpretation of frac...
void finalizeConstruction()
void setCacheAndTrackHints(RooArgSet &) override
Label OK'ed components of a RooAddPdf with cache-and-track.
bool _recursive
Flag indicating is fractions are treated recursively.
RooObjCacheManager _projCacheMgr
bool checkObservables(const RooArgSet *nset) const override
Check if PDF is valid for given normalization set.
void selectNormalizationRange(const char *rangeName=0, bool force=false) override
Interface function used by test statistics to freeze choice of range for interpretation of fraction c...
void fixCoefNormalization(const RooArgSet &refCoefNorm)
By default the interpretation of the fraction coefficients is performed in the contextual choice of o...
RooSetProxy _refCoefNorm
Reference observable set for coefficient interpretation.
void resetErrorCounters(Int_t resetValue=10) override
Reset error counter to given value, limiting the number of future error messages for this pdf to 'res...
double expectedEvents(const RooArgSet *nset) const override
Return expected number of events for extended likelihood calculation, which is the sum of all coeffic...
double getValV(const RooArgSet *set=nullptr) const override
Calculate and return the current value.
void fixCoefRange(const char *rangeName)
By default, fraction coefficients are assumed to refer to the default fit range.
std::list< double > * plotSamplingHint(RooAbsRealLValue &obs, double xlo, double xhi) const override
Loop over components for plot sampling hints and merge them if there are multiple.
RooListProxy _pdfList
List of component PDFs.
TNamed * _refCoefRangeName
Reference range name for coefficient interpreation.
const RooArgList & pdfList() const
void computeBatch(cudaStream_t *, double *output, size_t nEvents, RooFit::Detail::DataMap const &) const override
Compute addition of PDFs in batches.
bool isBinnedDistribution(const RooArgSet &obs) const override
If all components that depend on obs are binned, so is their sum.
double analyticalIntegralWN(Int_t code, const RooArgSet *normSet, const char *rangeName=0) const override
Return analytical integral defined by given scenario code.
bool _projectCoefs
If true coefficients need to be projected for use in evaluate()
std::vector< double > _coefCache
! Transient cache with transformed values of coefficients
std::list< double > * binBoundaries(RooAbsRealLValue &, double, double) const override
Loop over components for plot sampling hints and merge them if there are multiple.
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgList.h:22
RooAbsArg * at(Int_t idx) const
Return object at given index, or nullptr if index is out of range.
Definition: RooArgList.h:110
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:57
RooFit::UniqueId< RooArgSet > const & uniqueId() const
Returns a unique ID that is different for every instantiated RooArgSet.
Definition: RooArgSet.h:193
virtual void compute(cudaStream_t *, Computer, RestrictArr, size_t, const VarVector &, const ArgVector &={})=0
T * getObj(const RooArgSet *nset, Int_t *sterileIndex=0, const TNamed *isetRangeName=0)
Getter function without integration set.
void reset()
Clear the cache.
Int_t setObj(const RooArgSet *nset, T *obj, const TNamed *isetRangeName=0)
Setter function without integration set.
void removeAll() override
Remove all argument inset using remove(const RooAbsArg&).
bool add(const RooAbsArg &var, bool valueServer, bool shapeServer, bool silent)
Overloaded RooCollection_t::add() method insert object into set and registers object as server to own...
RooDataSet is a container class to hold unbinned data.
Definition: RooDataSet.h:55
A one-time forward iterator working on RooLinkedList or RooAbsCollection.
RooAbsArg * next()
Return next element or nullptr if at end.
static RooMsgService & instance()
Return reference to singleton instance.
static Int_t _debugCount
bool isActive(const RooAbsArg *self, RooFit::MsgTopic facility, RooFit::MsgLevel level)
Check if logging is active for given object/topic/RooFit::MsgLevel combination.
static const char * str(const TNamed *ptr)
Return C++ string corresponding to given TNamed pointer.
Definition: RooNameReg.cxx:102
static const TNamed * ptr(const char *stringPtr)
Return a unique TNamed pointer for given C++ string.
Definition: RooNameReg.cxx:92
static RooConstVar & value(double value)
Return a constant value object with given value.
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:40
Class RooRecursiveFraction is a RooAbsReal implementation that calculates the plain fraction of sum o...
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
const char * GetName() const override
Returns name of object.
Definition: TNamed.h:47
Ssiz_t Length() const
Definition: TString.h:410
const char * Data() const
Definition: TString.h:369
RooConstVar & RooConst(double val)
const Int_t n
Definition: legend1.C:16
for(Int_t i=0;i< n;i++)
Definition: legend1.C:18
std::vector< RooSpan< const double > > VarVector
R__EXTERN RooBatchComputeInterface * dispatchCUDA
R__EXTERN RooBatchComputeInterface * dispatchCPU
This dispatch pointer points to an implementation of the compute library, provided one has been loade...
std::vector< double > ArgVector
std::map< DataKey, RooSpan< const double > > DataMap
Definition: DataMap.h:59
@ InputArguments
Definition: RooGlobalFunc.h:64
Definition: first.py:1