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RooExtendPdf.h
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1 /*****************************************************************************
2  * Project: RooFit *
3  * Package: RooFitCore *
4  * File: $Id: RooExtendPdf.h,v 1.12 2007/07/16 21:04:28 wouter Exp $
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_EXTEND_PDF
17 #define ROO_EXTEND_PDF
18 
19 #include "RooAbsPdf.h"
20 #include "RooRealProxy.h"
21 
22 class RooExtendPdf : public RooAbsPdf {
23 public:
24 
25  RooExtendPdf() ;
26  RooExtendPdf(const char *name, const char *title, RooAbsPdf& pdf,
27  RooAbsReal& norm, const char* rangeName=0) ;
28  RooExtendPdf(const RooExtendPdf& other, const char* name=0) ;
29  virtual TObject* clone(const char* newname) const { return new RooExtendPdf(*this,newname) ; }
30  virtual ~RooExtendPdf() ;
31 
32  Double_t evaluate() const { return _pdf ; }
33 
34  Bool_t forceAnalyticalInt(const RooAbsArg& /*dep*/) const { return kTRUE ; }
35  Int_t getAnalyticalIntegralWN(RooArgSet& allVars, RooArgSet& analVars, const RooArgSet* normSet, const char* rangeName=0) const {
36  // Forward determination of analytical integration capabilities to input p.d.f
37  return _pdf->getAnalyticalIntegralWN(allVars, analVars, normSet, rangeName) ;
38  }
39  Double_t analyticalIntegralWN(Int_t code, const RooArgSet* normSet, const char* rangeName=0) const {
40  // Forward calculation of analytical integrals to input p.d.f
41  return _pdf->analyticalIntegralWN(code, normSet, rangeName) ;
42  }
43 
44  virtual Bool_t selfNormalized() const { return kTRUE ; }
45  virtual ExtendMode extendMode() const { return CanBeExtended ; }
46  virtual Double_t expectedEvents(const RooArgSet* nset) const ;
47  ///See expectedEvents(const RooArgSet* nset) const
48  virtual Double_t expectedEvents(const RooArgSet& nset) const { return expectedEvents(&nset) ; }
49 
50 protected:
51 
53  RooTemplateProxy<RooAbsReal> _n; // Number of expected events
54  const TNamed* _rangeName ; // Name of subset range
55 
56 
57  ClassDef(RooExtendPdf,2) // Wrapper p.d.f adding an extended likelihood term to an existing p.d.f
58 };
59 
60 #endif
RooExtendPdf::forceAnalyticalInt
Bool_t forceAnalyticalInt(const RooAbsArg &) const
Definition: RooExtendPdf.h:34
kTRUE
const Bool_t kTRUE
Definition: RtypesCore.h:91
RooExtendPdf::analyticalIntegralWN
Double_t analyticalIntegralWN(Int_t code, const RooArgSet *normSet, const char *rangeName=0) const
Analytical integral with normalization (see RooAbsReal::analyticalIntegralWN() for further informatio...
Definition: RooExtendPdf.h:39
RooExtendPdf::RooExtendPdf
RooExtendPdf()
Definition: RooExtendPdf.cxx:56
RooAbsPdf::CanBeExtended
@ CanBeExtended
Definition: RooAbsPdf.h:232
RooExtendPdf::~RooExtendPdf
virtual ~RooExtendPdf()
Definition: RooExtendPdf.cxx:97
RooExtendPdf
RooExtendPdf is a wrapper around an existing PDF that adds a parameteric extended likelihood term to ...
Definition: RooExtendPdf.h:22
RooAbsReal
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:61
bool
RooAbsPdf::ExtendMode
ExtendMode
Definition: RooAbsPdf.h:232
RooAbsPdf.h
TNamed
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
RooAbsPdf::analyticalIntegralWN
Double_t analyticalIntegralWN(Int_t code, const RooArgSet *normSet, const char *rangeName=0) const
Analytical integral with normalization (see RooAbsReal::analyticalIntegralWN() for further informatio...
Definition: RooAbsPdf.cxx:392
RooRealProxy.h
RooExtendPdf::getAnalyticalIntegralWN
Int_t getAnalyticalIntegralWN(RooArgSet &allVars, RooArgSet &analVars, const RooArgSet *normSet, const char *rangeName=0) const
Variant of getAnalyticalIntegral that is also passed the normalization set that should be applied to ...
Definition: RooExtendPdf.h:35
RooExtendPdf::expectedEvents
virtual Double_t expectedEvents(const RooArgSet &nset) const
See expectedEvents(const RooArgSet* nset) const.
Definition: RooExtendPdf.h:48
RooExtendPdf::selfNormalized
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: RooExtendPdf.h:44
RooExtendPdf::_pdf
RooTemplateProxy< RooAbsPdf > _pdf
Definition: RooExtendPdf.h:52
RooExtendPdf::extendMode
virtual ExtendMode extendMode() const
Returns ability of PDF to provide extended likelihood terms.
Definition: RooExtendPdf.h:45
RooTemplateProxy< RooAbsPdf >
RooAbsReal::getAnalyticalIntegralWN
virtual Int_t getAnalyticalIntegralWN(RooArgSet &allVars, RooArgSet &analVars, const RooArgSet *normSet, const char *rangeName=0) const
Variant of getAnalyticalIntegral that is also passed the normalization set that should be applied to ...
Definition: RooAbsReal.cxx:387
Double_t
double Double_t
Definition: RtypesCore.h:59
TObject
Mother of all ROOT objects.
Definition: TObject.h:37
ClassDef
#define ClassDef(name, id)
Definition: Rtypes.h:325
name
char name[80]
Definition: TGX11.cxx:110
RooExtendPdf::_rangeName
const TNamed * _rangeName
Definition: RooExtendPdf.h:54
RooExtendPdf::clone
virtual TObject * clone(const char *newname) const
Definition: RooExtendPdf.h:29
RooAbsArg
RooAbsArg is the common abstract base class for objects that represent a value and a "shape" in RooFi...
Definition: RooAbsArg.h:72
RooAbsPdf
Definition: RooAbsPdf.h:43
RooExtendPdf::_n
RooTemplateProxy< RooAbsReal > _n
Definition: RooExtendPdf.h:53
RooExtendPdf::expectedEvents
virtual Double_t expectedEvents(const RooArgSet *nset) const
Return the number of expected events over the full range of all variables.
Definition: RooExtendPdf.cxx:116
RooExtendPdf::evaluate
Double_t evaluate() const
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooExtendPdf.h:32
RooArgSet
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:29
int