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RooBinnedGenContext.h
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1/*****************************************************************************
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 *****************************************************************************/
16#ifndef ROO_BINNED_GEN_CONTEXT
17#define ROO_BINNED_GEN_CONTEXT
18
19#include "RooAbsGenContext.h"
20#include "RooArgSet.h"
21
22
23class RooDataSet;
24class RooRealIntegral;
25class RooAcceptReject;
26class RooDataHist;
27class TRandom;
28class TIterator;
29
31public:
32 RooBinnedGenContext(const RooAbsPdf &model, const RooArgSet &vars, const RooDataSet *prototype= 0,
33 const RooArgSet* auxProto=0, Bool_t _verbose= kFALSE);
34 virtual ~RooBinnedGenContext();
35
36 RooDataSet* generate(Double_t nEvents=0, Bool_t skipInit=kFALSE, Bool_t extendedMode=kFALSE) ;
37
38 virtual void setProtoDataOrder(Int_t*) {}
39
40 virtual void attach(const RooArgSet& params) ;
41
42 virtual void printMultiline(std::ostream &os, Int_t content, Bool_t verbose=kFALSE, TString indent="") const ;
43
44 virtual void setExpectedData(Bool_t) ;
45
46protected:
47
48 virtual void initGenerator(const RooArgSet &theEvent);
49 virtual void generateEvent(RooArgSet &theEvent, Int_t remaining);
50
52
53 const RooArgSet* _vars ;
54 RooArgSet* _pdfSet ; // Set owned all nodes of internal clone of p.d.f
55 RooAbsPdf *_pdf ; // Pointer to cloned p.d.f
56 RooDataHist* _hist ; // Histogram
57 Bool_t _expectedData ; // Asimov?
58
59 ClassDef(RooBinnedGenContext,0) // Specialized context for generating a dataset from a binned pdf
60};
61
62#endif
const Bool_t kFALSE
Definition RtypesCore.h:92
double Double_t
Definition RtypesCore.h:59
#define ClassDef(name, id)
Definition Rtypes.h:325
static void indent(ostringstream &buf, int indent_level)
RooAbsGenContext is the abstract base class for generator contexts of RooAbsPdf objects.
Class RooAcceptReject is a generic toy monte carlo generator implement the accept/reject sampling tec...
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition RooArgSet.h:29
RooBinnedGenContext is an efficient implementation of the generator context specific for binned pdfs.
virtual void initGenerator(const RooArgSet &theEvent)
One-time initialization of generator contex.
RooBinnedGenContext(const RooBinnedGenContext &other)
const RooArgSet * _vars
virtual void attach(const RooArgSet &params)
Attach given set of variables to internal p.d.f. clone.
virtual void generateEvent(RooArgSet &theEvent, Int_t remaining)
this method is not implemented for this context
virtual ~RooBinnedGenContext()
Destructor. Delete all owned subgenerator contexts.
virtual void setExpectedData(Bool_t)
virtual void printMultiline(std::ostream &os, Int_t content, Bool_t verbose=kFALSE, TString indent="") const
Print the details of the context.
RooDataSet * generate(Double_t nEvents=0, Bool_t skipInit=kFALSE, Bool_t extendedMode=kFALSE)
Generate the specified number of events with nEvents>0 and and return a dataset containing the genera...
virtual void setProtoDataOrder(Int_t *)
Set the traversal order of prototype data to that in the lookup tables passed as argument.
The RooDataHist is a container class to hold N-dimensional binned data.
Definition RooDataHist.h:37
RooDataSet is a container class to hold unbinned data.
Definition RooDataSet.h:33
RooRealIntegral performs hybrid numerical/analytical integrals of RooAbsReal objects.
Iterator abstract base class.
Definition TIterator.h:30
This is the base class for the ROOT Random number generators.
Definition TRandom.h:27
Basic string class.
Definition TString.h:136