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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 *****************************************************************************/
17#ifndef ROO_XY_CHI2_VAR
18#define ROO_XY_CHI2_VAR
21#include "RooCmdArg.h"
22#include "RooDataSet.h"
23#include "RooAbsPdf.h"
24#include "RooNumIntConfig.h"
25#include <list>
26class RooAbsIntegrator ;
32 // Constructors, assignment etc
33 RooXYChi2Var() ;
34 RooXYChi2Var(const char *name, const char* title, RooAbsReal& func, RooDataSet& data, Bool_t integrate=kFALSE) ;
35 RooXYChi2Var(const char *name, const char* title, RooAbsReal& func, RooDataSet& data, RooRealVar& yvar, Bool_t integrate=kFALSE) ;
36 RooXYChi2Var(const char *name, const char* title, RooAbsPdf& extPdf, RooDataSet& data, Bool_t integrate=kFALSE) ;
37 RooXYChi2Var(const char *name, const char* title, RooAbsPdf& extPdf, RooDataSet& data, RooRealVar& yvar, Bool_t integrate=kFALSE) ;
39 RooXYChi2Var(const RooXYChi2Var& other, const char* name=0);
40 virtual TObject* clone(const char* newname) const { return new RooXYChi2Var(*this,newname); }
42 virtual RooAbsTestStatistic* create(const char *name, const char *title, RooAbsReal& pdf, RooAbsData& adata,
43 const RooArgSet&, const char*, const char*,Int_t, RooFit::MPSplit,Bool_t, Bool_t, Bool_t) {
44 // Virtual constructor
45 return new RooXYChi2Var(name,title,pdf,(RooDataSet&)adata) ;
46 }
48 virtual ~RooXYChi2Var();
50 virtual Double_t defaultErrorLevel() const {
51 // The default error level for MINUIT error analysis for a chi^2 is 1.0
52 return 1.0 ;
53 }
61 // Disable function (component) caching if integration is requested as the function
62 // will be evaluated at coordinates other than the points in the dataset
63 return !_integrate ;
64 }
68 Double_t fy() const ;
70 Bool_t _extended ; // Is the input function and extended p.d.f.
71 Bool_t _integrate ; // Is integration over the bin volume requested
73 RooRealVar* _yvar ; // Y variable if so designated
74 RooArgSet _rrvArgs ; // Set of real-valued observables
75 TIterator* _rrvIter ; //! Iterator over set of real-valued observables
77 void initialize() ;
78 void initIntegrator() ;
81 virtual Double_t evaluatePartition(std::size_t firstEvent, std::size_t lastEvent, std::size_t stepSize) const ;
83 RooNumIntConfig _intConfig ; // Numeric integrator configuration for integration of function over bin
84 RooAbsReal* _funcInt ; //! Function integral
85 std::list<RooAbsBinning*> _binList ; //! Bin ranges
87 ClassDef(RooXYChi2Var,1) // Chi^2 function of p.d.f w.r.t a unbinned dataset with X and Y values
int Int_t
Definition: RtypesCore.h:41
const Bool_t kFALSE
Definition: RtypesCore.h:88
bool Bool_t
Definition: RtypesCore.h:59
double Double_t
Definition: RtypesCore.h:55
#define ClassDef(name, id)
Definition: Rtypes.h:326
char name[80]
Definition: TGX11.cxx:109
RooAbsData is the common abstract base class for binned and unbinned datasets.
Definition: RooAbsData.h:39
RooAbsIntegrator is the abstract interface for integrators of real-valued functions that implement th...
RooAbsOptTestStatistic is the abstract base class for test statistics objects that evaluate a functio...
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:59
RooAbsTestStatistic is the abstract base class for all test statistics.
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:28
RooDataSet is a container class to hold unbinned data.
Definition: RooDataSet.h:31
RooNumIntConfig holds the configuration parameters of the various numeric integrators used by RooReal...
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:35
RooAbsReal * _funcInt
Definition: RooXYChi2Var.h:84
Bool_t allowFunctionCache()
Definition: RooXYChi2Var.h:60
RooArgSet requiredExtraObservables() const
std::list< RooAbsBinning * > _binList
Function integral.
Definition: RooXYChi2Var.h:85
Bool_t _extended
Definition: RooXYChi2Var.h:70
void initIntegrator()
Initialize bin content integrator.
virtual RooAbsTestStatistic * create(const char *name, const char *title, RooAbsReal &pdf, RooAbsData &adata, const RooArgSet &, const char *, const char *, Int_t, RooFit::MPSplit, Bool_t, Bool_t, Bool_t)
Definition: RooXYChi2Var.h:42
virtual Double_t defaultErrorLevel() const
Definition: RooXYChi2Var.h:50
RooRealVar * _yvar
Definition: RooXYChi2Var.h:73
virtual ~RooXYChi2Var()
TIterator * _rrvIter
Definition: RooXYChi2Var.h:75
RooArgSet _rrvArgs
Definition: RooXYChi2Var.h:74
virtual Double_t evaluatePartition(std::size_t firstEvent, std::size_t lastEvent, std::size_t stepSize) const
Calculate chi^2 in partition from firstEvent to lastEvent using given stepSize.
Double_t fy() const
Return function value requested bu present configuration.
const RooNumIntConfig & binIntegratorConfig() const
Definition: RooXYChi2Var.h:56
void initialize()
Iterator over set of real-valued observables.
Bool_t _integrate
Definition: RooXYChi2Var.h:71
RooNumIntConfig _intConfig
Definition: RooXYChi2Var.h:83
virtual TObject * clone(const char *newname) const
Definition: RooXYChi2Var.h:40
Double_t xErrorContribution(Double_t ydata) const
Calculate contribution to internal error due to error on 'x' coordinates at point i.
RooNumIntConfig & binIntegratorConfig()
Definition: RooXYChi2Var.h:55
Iterator abstract base class.
Definition: TIterator.h:30
Mother of all ROOT objects.
Definition: TObject.h:37