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RooNumRunningInt.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 ROONUMRUNNINGINT
13#define ROONUMRUNNINGINT
14
15#include "RooAbsCachedReal.h"
16#include "RooRealProxy.h"
17#include "RooAbsReal.h"
18#include <string>
19
21public:
22 RooNumRunningInt(const char *name, const char *title, RooAbsReal& _func, RooRealVar& _x, const char* binningName="cache");
23 RooNumRunningInt(const RooNumRunningInt& other, const char* name=0) ;
24 virtual TObject* clone(const char* newname) const { return new RooNumRunningInt(*this,newname); }
25 virtual ~RooNumRunningInt() ;
26
27protected:
28
29 class RICacheElem: public FuncCacheElem {
30 public:
31 RICacheElem(const RooNumRunningInt& ri, const RooArgSet* nset) ;
32 ~RICacheElem() ;
34 void calculate(Bool_t cdfmode) ;
35 void addRange(Int_t ixlo, Int_t ixhi, Int_t nbins) ;
36 void addPoint(Int_t ix) ;
37
42
43 } ;
44
45 friend class RICacheElem ;
46 virtual const char* binningName() const { return _binningName.c_str() ; }
47 virtual FuncCacheElem* createCache(const RooArgSet* nset) const ;
48 virtual const char* inputBaseName() const ;
49 virtual RooArgSet* actualObservables(const RooArgSet& nset) const ;
50 virtual RooArgSet* actualParameters(const RooArgSet& nset) const ;
51 virtual void fillCacheObject(FuncCacheElem& cacheFunc) const ;
52 virtual Double_t evaluate() const ;
53
54 virtual const char* payloadUniqueSuffix() const { return func.arg().aggregateCacheUniqueSuffix() ; }
55
56 RooRealProxy func ; // Proxy to functions whose running integral is calculated
57 RooRealProxy x ; // Intergrated observable
58 std::string _binningName ; // Name of binning to be used for cache histogram
59
60private:
61
62 ClassDef(RooNumRunningInt,1) // Numeric calculator for running integral of a given function
63
64};
65
66#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
RooAbsCachedReal is the abstract base class for functions that need or want to cache their evaluate()...
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition RooAbsReal.h:61
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition RooArgList.h:21
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition RooArgSet.h:29
void addRange(Int_t ixlo, Int_t ixhi, Int_t nbins)
Fill all empty histogram bins in the range [ixlo,ixhi] where nbins is the total number of histogram b...
virtual RooArgList containedArgs(Action)
Return all RooAbsArg components contained in cache element.
void addPoint(Int_t ix)
Sample function at bin ix.
void calculate(Bool_t cdfmode)
Calculate the numeric running integral and store the result in the cache histogram provided by RooAbs...
Class RooNumRunningInt is an implementation of RooAbsCachedReal that represents a running integral.
virtual RooArgSet * actualObservables(const RooArgSet &nset) const
Return observable in nset to be cached by RooAbsCachedPdf this is always the x observable that is int...
virtual FuncCacheElem * createCache(const RooArgSet *nset) const
Create custom cache element for running integral calculations.
std::string _binningName
virtual const char * binningName() const
virtual Double_t evaluate() const
Dummy function that is never called.
virtual RooArgSet * actualParameters(const RooArgSet &nset) const
Return the parameters of the cache created by RooAbsCachedPdf.
virtual TObject * clone(const char *newname) const
virtual void fillCacheObject(FuncCacheElem &cacheFunc) const
Fill the cache object by calling its calculate() method.
virtual const char * payloadUniqueSuffix() const
virtual ~RooNumRunningInt()
Destructor.
virtual const char * inputBaseName() const
Return unique name for RooAbsCachedPdf cache components constructed from input function name.
RooRealVar represents a variable that can be changed from the outside.
Definition RooRealVar.h:39
const T & arg() const
Return reference to object held in proxy.
Mother of all ROOT objects.
Definition TObject.h:37