/usr/include/root/RooXYChi2Var.h is in libroot-roofit-dev 5.34.00-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Project: RooFit *
* Package: RooFitCore *
* File: $Id: RooXYChi2Var.h 28259 2009-04-16 16:21:16Z wouter $
* Authors: *
* WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
* DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
* *
* Copyright (c) 2000-2005, Regents of the University of California *
* and Stanford University. All rights reserved. *
* *
* Redistribution and use in source and binary forms, *
* with or without modification, are permitted according to the terms *
* listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
*****************************************************************************/
#ifndef ROO_XY_CHI2_VAR
#define ROO_XY_CHI2_VAR
#include "RooAbsOptTestStatistic.h"
#include "RooCmdArg.h"
#include "RooDataSet.h"
#include "RooAbsPdf.h"
#include "RooNumIntConfig.h"
#include <list>
class RooAbsIntegrator ;
class RooXYChi2Var : public RooAbsOptTestStatistic {
public:
// Constructors, assignment etc
RooXYChi2Var() ;
RooXYChi2Var(const char *name, const char* title, RooAbsReal& func, RooDataSet& data, Bool_t integrate=kFALSE) ;
RooXYChi2Var(const char *name, const char* title, RooAbsReal& func, RooDataSet& data, RooRealVar& yvar, Bool_t integrate=kFALSE) ;
RooXYChi2Var(const char *name, const char* title, RooAbsPdf& extPdf, RooDataSet& data, Bool_t integrate=kFALSE) ;
RooXYChi2Var(const char *name, const char* title, RooAbsPdf& extPdf, RooDataSet& data, RooRealVar& yvar, Bool_t integrate=kFALSE) ;
RooXYChi2Var(const RooXYChi2Var& other, const char* name=0);
virtual TObject* clone(const char* newname) const { return new RooXYChi2Var(*this,newname); }
virtual RooAbsTestStatistic* create(const char *name, const char *title, RooAbsReal& pdf, RooAbsData& adata,
const RooArgSet&, const char*, const char*,Int_t, Bool_t,Bool_t, Bool_t) {
// Virtual constructor
return new RooXYChi2Var(name,title,pdf,(RooDataSet&)adata) ;
}
virtual ~RooXYChi2Var();
virtual Double_t defaultErrorLevel() const {
// The default error level for MINUIT error analysis for a chi^2 is 1.0
return 1.0 ;
}
RooNumIntConfig& binIntegratorConfig() { return _intConfig ; }
const RooNumIntConfig& binIntegratorConfig() const { return _intConfig ; }
protected:
Bool_t allowFunctionCache() {
// Disable function (component) caching if integration is requested as the function
// will be evaluated at coordinates other than the points in the dataset
return !_integrate ;
}
RooArgSet requiredExtraObservables() const ;
Double_t fy() const ;
Bool_t _extended ; // Is the input function and extended p.d.f.
Bool_t _integrate ; // Is integration over the bin volume requested
RooRealVar* _yvar ; // Y variable if so designated
RooArgSet _rrvArgs ; // Set of real-valued observables
TIterator* _rrvIter ; //! Iterator over set of real-valued observables
void initialize() ;
void initIntegrator() ;
Double_t xErrorContribution(Double_t ydata) const ;
virtual Double_t evaluatePartition(Int_t firstEvent, Int_t lastEvent, Int_t stepSize) const ;
RooNumIntConfig _intConfig ; // Numeric integrator configuration for integration of function over bin
RooAbsReal* _funcInt ; //! Function integral
std::list<RooAbsBinning*> _binList ; //! Bin ranges
ClassDef(RooXYChi2Var,1) // Chi^2 function of p.d.f w.r.t a unbinned dataset with X and Y values
};
#endif
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