/usr/include/root/RooBinIntegrator.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: RooBinIntegrator.h 42984 2012-02-13 15:30:31Z 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_BIN_INTEGRATOR
#define ROO_BIN_INTEGRATOR
#include "RooAbsIntegrator.h"
#include "RooNumIntConfig.h"
#include <vector>
class RooBinIntegrator : public RooAbsIntegrator {
public:
// Constructors, assignment etc
RooBinIntegrator() ;
RooBinIntegrator(const RooAbsFunc& function) ;
RooBinIntegrator(const RooAbsFunc& function, const RooNumIntConfig& config) ;
virtual RooAbsIntegrator* clone(const RooAbsFunc& function, const RooNumIntConfig& config) const ;
virtual ~RooBinIntegrator();
virtual Bool_t checkLimits() const;
virtual Double_t integral(const Double_t *yvec=0) ;
using RooAbsIntegrator::setLimits ;
Bool_t setLimits(Double_t* xmin, Double_t* xmax);
virtual Bool_t setUseIntegrandLimits(Bool_t flag) {_useIntegrandLimits = flag ; return kTRUE ; }
virtual Bool_t canIntegrate1D() const { return kTRUE ; }
virtual Bool_t canIntegrate2D() const { return kTRUE ; }
virtual Bool_t canIntegrateND() const { return kTRUE ; }
virtual Bool_t canIntegrateOpenEnded() const { return kFALSE ; }
protected:
friend class RooNumIntFactory ;
static void registerIntegrator(RooNumIntFactory& fact) ;
RooBinIntegrator(const RooBinIntegrator&) ;
// Numerical integrator workspace
mutable std::vector<Double_t> _xmin; //! Lower integration bound
mutable std::vector<Double_t> _xmax; //! Upper integration bound
std::vector<std::list<Double_t>*> _binb ; //! list of bin boundaries
mutable Int_t _numBins; //! Size of integration range
Bool_t _useIntegrandLimits; // If true limits of function binding are ued
Double_t* xvec(Double_t& xx) { _x[0] = xx ; return _x ; }
Double_t* xvec(Double_t& xx, Double_t &yy) { _x[0] = xx ; _x[1] = yy ; return _x ; }
Double_t* xvec(Double_t& xx, Double_t &yy, Double_t &zz) { _x[0] = xx ; _x[1] = yy ; _x[2] = zz ; return _x ; }
Double_t *_x ; //! do not persist
ClassDef(RooBinIntegrator,0) // 1-dimensional numerical integration engine
};
#endif
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