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RooCachedPdf.h
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1/*****************************************************************************
2 * Project: RooFit *
3 * *
4 * Copyright (c) 2000-2005, Regents of the University of California *
5 * and Stanford University. All rights reserved. *
6 * *
7 * Redistribution and use in source and binary forms, *
8 * with or without modification, are permitted according to the terms *
9 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
10 *****************************************************************************/
11
12#ifndef ROOCACHEDPDF
13#define ROOCACHEDPDF
14
15#include "RooAbsCachedPdf.h"
16#include "RooRealProxy.h"
17#include "RooAbsReal.h"
18
19
21public:
23 RooCachedPdf(const char *name, const char *title, RooAbsPdf& _pdf, const RooArgSet& cacheObs);
24 RooCachedPdf(const char *name, const char *title, RooAbsPdf& _pdf);
25 RooCachedPdf(const RooCachedPdf& other, const char* name=0) ;
26 virtual TObject* clone(const char* newname) const { return new RooCachedPdf(*this,newname); }
27 virtual ~RooCachedPdf() ;
28
29 virtual void preferredObservableScanOrder(const RooArgSet& obs, RooArgSet& orderedObs) const ;
30
31protected:
32
33 virtual const char* inputBaseName() const {
34 // Return the base name for cache objects, in this case the name of the cached p.d.f
35 return pdf.arg().GetName() ;
36 } ;
37 virtual RooArgSet* actualObservables(const RooArgSet& nset) const ;
38 virtual RooArgSet* actualParameters(const RooArgSet& nset) const ;
39 virtual void fillCacheObject(PdfCacheElem& cachePdf) const ;
40 virtual Double_t evaluate() const {
41 // Dummy evaluate, it is never called
42 return 0 ;
43 }
44
45 virtual const char* payloadUniqueSuffix() const { return pdf.arg().aggregateCacheUniqueSuffix() ; }
46
47 RooRealProxy pdf ; // Proxy to p.d.f being cached
48 RooSetProxy _cacheObs ; // Observable to be cached
49
50private:
51
52 ClassDef(RooCachedPdf,1) // P.d.f class that wraps another p.d.f and caches its output
53
54};
55
56#endif
double Double_t
Definition RtypesCore.h:59
#define ClassDef(name, id)
Definition Rtypes.h:325
char name[80]
Definition TGX11.cxx:110
const char * aggregateCacheUniqueSuffix() const
RooAbsCachedPdf is the abstract base class for p.d.f.s that need or want to cache their evaluate() ou...
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition RooArgSet.h:35
RooCachedPdf is an implementation of RooAbsCachedPdf that can cache any external RooAbsPdf input func...
RooRealProxy pdf
RooSetProxy _cacheObs
virtual void fillCacheObject(PdfCacheElem &cachePdf) const
Update contents of cache histogram by resampling the input p.d.f.
virtual RooArgSet * actualObservables(const RooArgSet &nset) const
If this pdf is operated with a fixed set of observables, return the subset of the fixed observables t...
virtual void preferredObservableScanOrder(const RooArgSet &obs, RooArgSet &orderedObs) const
Defer preferred scan order to cached pdf preference.
virtual const char * payloadUniqueSuffix() const
virtual ~RooCachedPdf()
Destructor.
virtual Double_t evaluate() const
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
virtual RooArgSet * actualParameters(const RooArgSet &nset) const
If this p.d.f is operated with a fixed set of observables, return all variables of the external input...
virtual TObject * clone(const char *newname) const
virtual const char * inputBaseName() const
RooSetProxy is the concrete proxy for RooArgSet objects.
Definition RooSetProxy.h:23
const T & arg() const
Return reference to object held in proxy.
virtual const char * GetName() const
Returns name of object.
Definition TNamed.h:47
Mother of all ROOT objects.
Definition TObject.h:41