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RooHistPdf.h
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitCore *
4 * File: $Id$
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 *
10 * and Stanford University. All rights reserved. *
11 * *
12 * Redistribution and use in source and binary forms, *
13 * with or without modification, are permitted according to the terms *
14 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
15 *****************************************************************************/
16#ifndef ROO_HIST_PDF
17#define ROO_HIST_PDF
18
19#include "RooAbsPdf.h"
20#include "RooRealProxy.h"
21#include "RooSetProxy.h"
22#include "RooAICRegistry.h"
23
24class RooRealVar;
25class RooAbsReal;
26class RooDataHist ;
27
28class RooHistPdf : public RooAbsPdf {
29public:
30 RooHistPdf() ;
31 RooHistPdf(const char *name, const char *title, const RooArgSet& vars, const RooDataHist& dhist, Int_t intOrder=0);
32 RooHistPdf(const char *name, const char *title, const RooArgList& pdfObs, const RooArgList& histObs, const RooDataHist& dhist, Int_t intOrder=0);
33 RooHistPdf(const RooHistPdf& other, const char* name=0);
34 virtual TObject* clone(const char* newname) const { return new RooHistPdf(*this,newname); }
35 virtual ~RooHistPdf() ;
36
38 // Return RooDataHist that is represented
39 return *_dataHist ;
40 }
41 const RooDataHist& dataHist() const {
42 // Return RooDataHist that is represented
43 return *_dataHist ;
44 }
45
47 // Set histogram interpolation order
48 _intOrder = order ;
49 }
51 // Return histogram interpolation order
52 return _intOrder ;
53 }
54
55 Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const ;
56 Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const ;
57
59 // Set use of special boundary conditions for c.d.f.s
60 _cdfBoundaries = flag ;
61 }
63 // If true, special boundary conditions for c.d.f.s are used
64 return _cdfBoundaries ;
65 }
66
67 void setUnitNorm(Bool_t flag) {
68 // Declare contents to have unit normalization
69 _unitNorm = flag ;
70 }
72 // Return true if contents is declared to be unit normalized
73 return _unitNorm ;
74 }
75
76 virtual Bool_t selfNormalized() const { return _unitNorm ; }
77
78 virtual Int_t getMaxVal(const RooArgSet& vars) const ;
79 virtual Double_t maxVal(Int_t code) const ;
80
81 virtual std::list<Double_t>* plotSamplingHint(RooAbsRealLValue& obs, Double_t xlo, Double_t xhi) const ;
82 virtual std::list<Double_t>* binBoundaries(RooAbsRealLValue& /*obs*/, Double_t /*xlo*/, Double_t /*xhi*/) const ;
83 virtual Bool_t isBinnedDistribution(const RooArgSet&) const { return _intOrder==0 ; }
84
85
86protected:
87
88 Bool_t areIdentical(const RooDataHist& dh1, const RooDataHist& dh2) ;
89
91
92 Double_t evaluate() const;
94 friend class RooAbsCachedPdf ;
95 Double_t totVolume() const ;
96
97 RooArgSet _histObsList ; // List of observables defining dimensions of histogram
98 RooSetProxy _pdfObsList ; // List of observables mapped onto histogram observables
99 RooDataHist* _dataHist ; // Unowned pointer to underlying histogram
100 mutable RooAICRegistry _codeReg ; //! Auxiliary class keeping tracking of analytical integration code
101 Int_t _intOrder ; // Interpolation order
102 Bool_t _cdfBoundaries ; // Use boundary conditions for CDFs.
103 mutable Double_t _totVolume ; //! Total volume of space (product of ranges of observables)
104 Bool_t _unitNorm ; // Assume contents is unit normalized (for use as pdf cache)
105
106 ClassDef(RooHistPdf,4) // Histogram based PDF
107};
108
109#endif
double Double_t
Definition: RtypesCore.h:57
#define ClassDef(name, id)
Definition: Rtypes.h:322
char name[80]
Definition: TGX11.cxx:109
RooAICRegistry is a utility class for operator p.d.f classes that keeps track of analytical integrati...
RooAbsCachedPdf is the abstract base class for p.d.f.s that need or want to cache their evaluate() ou...
RooAbsRealLValue is the common abstract base class for objects that represent a real value that may a...
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:60
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:28
The RooDataHist is a container class to hold N-dimensional binned data.
Definition: RooDataHist.h:40
RooHistPdf implements a probablity density function sampled from a multidimensional histogram.
Definition: RooHistPdf.h:28
void setUnitNorm(Bool_t flag)
Definition: RooHistPdf.h:67
Int_t getInterpolationOrder() const
Definition: RooHistPdf.h:50
Double_t _totVolume
Definition: RooHistPdf.h:103
RooArgSet _histObsList
Definition: RooHistPdf.h:97
Int_t _intOrder
Auxiliary class keeping tracking of analytical integration code.
Definition: RooHistPdf.h:101
RooHistPdf()
Default constructor coverity[UNINIT_CTOR].
Definition: RooHistPdf.cxx:53
virtual Int_t getMaxVal(const RooArgSet &vars) const
Only handle case of maximum in all variables.
Definition: RooHistPdf.cxx:483
RooDataHist * _dataHist
Definition: RooHistPdf.h:99
void setCdfBoundaries(Bool_t flag)
Definition: RooHistPdf.h:58
virtual Double_t maxVal(Int_t code) const
Return maximum value for set of observables identified by code assigned in getMaxVal.
Definition: RooHistPdf.cxx:497
virtual Bool_t selfNormalized() const
Definition: RooHistPdf.h:76
virtual TObject * clone(const char *newname) const
Definition: RooHistPdf.h:34
Bool_t getCdfBoundaries() const
Definition: RooHistPdf.h:62
RooSetProxy _pdfObsList
Definition: RooHistPdf.h:98
Bool_t _unitNorm
Total volume of space (product of ranges of observables)
Definition: RooHistPdf.h:104
Double_t evaluate() const
Return the current value: The value of the bin enclosing the current coordinates of the observables,...
Definition: RooHistPdf.cxx:203
virtual ~RooHistPdf()
Destructor.
Definition: RooHistPdf.cxx:189
virtual std::list< Double_t > * plotSamplingHint(RooAbsRealLValue &obs, Double_t xlo, Double_t xhi) const
Return sampling hint for making curves of (projections) of this function as the recursive division st...
Definition: RooHistPdf.cxx:389
RooAICRegistry _codeReg
Definition: RooHistPdf.h:100
Bool_t _cdfBoundaries
Definition: RooHistPdf.h:102
Bool_t areIdentical(const RooDataHist &dh1, const RooDataHist &dh2)
Definition: RooHistPdf.cxx:516
Double_t totVolume() const
Return the total volume spanned by the observables of the RooHistPdf.
Definition: RooHistPdf.cxx:236
Bool_t haveUnitNorm() const
Definition: RooHistPdf.h:71
Bool_t importWorkspaceHook(RooWorkspace &ws)
Check if our datahist is already in the workspace.
Definition: RooHistPdf.cxx:533
RooDataHist & dataHist()
Definition: RooHistPdf.h:37
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const
Determine integration scenario.
Definition: RooHistPdf.cxx:285
Double_t analyticalIntegral(Int_t code, const char *rangeName=0) const
Return integral identified by 'code'.
Definition: RooHistPdf.cxx:326
virtual Bool_t isBinnedDistribution(const RooArgSet &) const
Definition: RooHistPdf.h:83
const RooDataHist & dataHist() const
Definition: RooHistPdf.h:41
void setInterpolationOrder(Int_t order)
Definition: RooHistPdf.h:46
virtual std::list< Double_t > * binBoundaries(RooAbsRealLValue &, Double_t, Double_t) const
Return sampling hint for making curves of (projections) of this function as the recursive division st...
Definition: RooHistPdf.cxx:447
Double_t totalVolume() const
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:35
RooSetProxy is the concrete proxy for RooArgSet objects.
Definition: RooSetProxy.h:24
The RooWorkspace is a persistable container for RooFit projects.
Definition: RooWorkspace.h:43
Mother of all ROOT objects.
Definition: TObject.h:37
void ws()
Definition: ws.C:66