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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#include <list>
24
25class RooRealVar;
26class RooAbsReal;
27class RooDataHist ;
28
29class RooHistPdf : public RooAbsPdf {
30public:
31 RooHistPdf() ;
32 RooHistPdf(const char *name, const char *title, const RooArgSet& vars, const RooDataHist& dhist, Int_t intOrder=0);
33 RooHistPdf(const char *name, const char *title, const RooArgList& pdfObs, const RooArgList& histObs, const RooDataHist& dhist, Int_t intOrder=0);
34 RooHistPdf(const RooHistPdf& other, const char* name=0);
35 virtual TObject* clone(const char* newname) const { return new RooHistPdf(*this,newname); }
36 virtual ~RooHistPdf() ;
37
39 // Return RooDataHist that is represented
40 return *_dataHist ;
41 }
42 const RooDataHist& dataHist() const {
43 // Return RooDataHist that is represented
44 return *_dataHist ;
45 }
46
48 // Set histogram interpolation order
49 _intOrder = order ;
50 }
52 // Return histogram interpolation order
53 return _intOrder ;
54 }
55
57 RooArgSet& analVars,
58 const char* rangeName,
59 RooArgSet const& histObsList,
60 RooSetProxy const& pdfObsList,
61 Int_t intOrder) ;
62
64 const char* rangeName,
65 RooArgSet const& histObsList,
66 RooSetProxy const& pdfObsList,
68 bool histFuncMode) ;
69
70 Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const ;
71 Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const ;
72
74 // Set use of special boundary conditions for c.d.f.s
75 _cdfBoundaries = flag ;
76 }
78 // If true, special boundary conditions for c.d.f.s are used
79 return _cdfBoundaries ;
80 }
81
82 void setUnitNorm(Bool_t flag) {
83 // Declare contents to have unit normalization
84 _unitNorm = flag ;
85 }
87 // Return true if contents is declared to be unit normalized
88 return _unitNorm ;
89 }
90
91 virtual Bool_t selfNormalized() const { return _unitNorm ; }
92
93 virtual Int_t getMaxVal(const RooArgSet& vars) const ;
94 virtual Double_t maxVal(Int_t code) const ;
95
96 virtual std::list<Double_t>* plotSamplingHint(RooAbsRealLValue& obs, Double_t xlo, Double_t xhi) const ;
97 virtual std::list<Double_t>* binBoundaries(RooAbsRealLValue& /*obs*/, Double_t /*xlo*/, Double_t /*xhi*/) const ;
98 virtual Bool_t isBinnedDistribution(const RooArgSet&) const { return _intOrder==0 ; }
99
100
101protected:
102
103 Bool_t areIdentical(const RooDataHist& dh1, const RooDataHist& dh2) ;
104
106
107 Double_t evaluate() const;
109 friend class RooAbsCachedPdf ;
110 Double_t totVolume() const ;
111
112 RooArgSet _histObsList ; // List of observables defining dimensions of histogram
113 RooSetProxy _pdfObsList ; // List of observables mapped onto histogram observables
114 RooDataHist* _dataHist ; // Unowned pointer to underlying histogram
115 mutable RooAICRegistry _codeReg ; //! Auxiliary class keeping tracking of analytical integration code
116 Int_t _intOrder ; // Interpolation order
117 Bool_t _cdfBoundaries ; // Use boundary conditions for CDFs.
118 mutable Double_t _totVolume ; //! Total volume of space (product of ranges of observables)
119 Bool_t _unitNorm ; // Assume contents is unit normalized (for use as pdf cache)
120
121 ClassDef(RooHistPdf,4) // Histogram based PDF
122};
123
124#endif
int Int_t
Definition: RtypesCore.h:45
bool Bool_t
Definition: RtypesCore.h:63
double Double_t
Definition: RtypesCore.h:59
#define ClassDef(name, id)
Definition: Rtypes.h:325
char name[80]
Definition: TGX11.cxx:110
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:61
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgList.h:22
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:35
The RooDataHist is a container class to hold N-dimensional binned data.
Definition: RooDataHist.h:44
RooHistPdf implements a probablity density function sampled from a multidimensional histogram.
Definition: RooHistPdf.h:29
void setUnitNorm(Bool_t flag)
Definition: RooHistPdf.h:82
Int_t getInterpolationOrder() const
Definition: RooHistPdf.h:51
Double_t _totVolume
Definition: RooHistPdf.h:118
RooArgSet _histObsList
Definition: RooHistPdf.h:112
Int_t _intOrder
Auxiliary class keeping tracking of analytical integration code.
Definition: RooHistPdf.h:116
RooHistPdf()
Default constructor coverity[UNINIT_CTOR].
Definition: RooHistPdf.cxx:54
virtual Int_t getMaxVal(const RooArgSet &vars) const
Only handle case of maximum in all variables.
Definition: RooHistPdf.cxx:474
RooDataHist * _dataHist
Definition: RooHistPdf.h:114
void setCdfBoundaries(Bool_t flag)
Definition: RooHistPdf.h:73
virtual Double_t maxVal(Int_t code) const
Return maximum value for set of observables identified by code assigned in getMaxVal.
Definition: RooHistPdf.cxx:488
virtual Bool_t selfNormalized() const
Shows if a PDF is self-normalized, which means that no attempt is made to add a normalization term.
Definition: RooHistPdf.h:91
virtual TObject * clone(const char *newname) const
Definition: RooHistPdf.h:35
Bool_t getCdfBoundaries() const
Definition: RooHistPdf.h:77
RooSetProxy _pdfObsList
Definition: RooHistPdf.h:113
Bool_t _unitNorm
Total volume of space (product of ranges of observables)
Definition: RooHistPdf.h:119
Double_t evaluate() const
Return the current value: The value of the bin enclosing the current coordinates of the observables,...
Definition: RooHistPdf.cxx:204
virtual ~RooHistPdf()
Destructor.
Definition: RooHistPdf.cxx:190
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:380
RooAICRegistry _codeReg
Definition: RooHistPdf.h:115
Bool_t _cdfBoundaries
Definition: RooHistPdf.h:117
Bool_t areIdentical(const RooDataHist &dh1, const RooDataHist &dh2)
Definition: RooHistPdf.cxx:507
Double_t totVolume() const
Return the total volume spanned by the observables of the RooHistPdf.
Definition: RooHistPdf.cxx:229
Bool_t haveUnitNorm() const
Definition: RooHistPdf.h:86
Bool_t importWorkspaceHook(RooWorkspace &ws)
Check if our datahist is already in the workspace.
Definition: RooHistPdf.cxx:524
RooDataHist & dataHist()
Definition: RooHistPdf.h:38
static Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName, RooArgSet const &histObsList, RooSetProxy const &pdfObsList, Int_t intOrder)
Definition: RooHistPdf.cxx:271
virtual Bool_t isBinnedDistribution(const RooArgSet &) const
Tests if the distribution is binned. Unless overridden by derived classes, this always returns false.
Definition: RooHistPdf.h:98
const RooDataHist & dataHist() const
Definition: RooHistPdf.h:42
void setInterpolationOrder(Int_t order)
Definition: RooHistPdf.h:47
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:438
Double_t totalVolume() const
static Double_t analyticalIntegral(Int_t code, const char *rangeName, RooArgSet const &histObsList, RooSetProxy const &pdfObsList, RooDataHist &dataHist, bool histFuncMode)
Definition: RooHistPdf.cxx:312
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:39
RooSetProxy is the concrete proxy for RooArgSet objects.
Definition: RooSetProxy.h:23
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