/usr/include/root/RooGenContext.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: RooGenContext.h,v 1.19 2007/05/11 09:11:30 verkerke Exp $
* 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_GEN_CONTEXT
#define ROO_GEN_CONTEXT
#include "RooAbsGenContext.h"
#include "RooArgSet.h"
class RooAbsPdf;
class RooDataSet;
class RooRealIntegral;
class RooAcceptReject;
class TRandom;
class RooRealVar ;
class RooAbsNumGenerator ;
class RooGenContext : public RooAbsGenContext {
public:
RooGenContext(const RooAbsPdf &model, const RooArgSet &vars, const RooDataSet *prototype= 0,
const RooArgSet* auxProto=0, Bool_t verbose=kFALSE, const RooArgSet* forceDirect=0);
virtual ~RooGenContext();
virtual void printMultiline(ostream &os, Int_t content, Bool_t verbose=kFALSE, TString indent="") const ;
virtual void attach(const RooArgSet& params) ;
protected:
virtual void initGenerator(const RooArgSet &theEvent);
virtual void generateEvent(RooArgSet &theEvent, Int_t remaining);
RooArgSet *_cloneSet; // Clone of all nodes of input p.d.f
RooAbsPdf *_pdfClone; // Clone of input p.d.f
RooArgSet _directVars,_uniformVars,_otherVars; // List of observables generated internally, randomly, and by accept/reject sampling
Int_t _code; // Internal generation code
Double_t _maxProb, _area, _norm; // Maximum probability, p.d.f area and normalization
RooRealIntegral *_acceptRejectFunc; // Projection function to be passed to accept/reject sampler
RooAbsNumGenerator *_generator; // MC sampling generation engine
RooRealVar *_maxVar ; // Variable holding maximum value of p.d.f
TIterator *_uniIter ; // Iterator over uniform observables
Int_t _updateFMaxPerEvent ; // If true, maximum p.d.f value needs to be recalculated for each event
ClassDef(RooGenContext,0) // Universal context for generating toy MC data from any p.d.f
};
#endif
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