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Reference Guide
RooProdGenContext.h
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1 /*****************************************************************************
2  * Project: RooFit *
3  * Package: RooFitCore *
4  * File: $Id: RooProdGenContext.h,v 1.15 2007/05/11 09:11:30 verkerke Exp $
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_PROD_GEN_CONTEXT
17 #define ROO_PROD_GEN_CONTEXT
18 
19 #include "TList.h"
20 #include "RooAbsGenContext.h"
21 #include "RooArgSet.h"
22 
23 class RooProdPdf;
24 class RooDataSet;
25 class RooRealIntegral;
26 class RooAcceptReject;
27 class TRandom;
28 class TIterator;
29 class RooSuperCategory ;
30 
32 public:
33  RooProdGenContext(const RooProdPdf &model, const RooArgSet &vars, const RooDataSet *prototype= 0,
34  const RooArgSet* auxProto=0, Bool_t _verbose= kFALSE);
35  virtual ~RooProdGenContext();
36 
37  virtual void setProtoDataOrder(Int_t* lut) ;
38  virtual void printMultiline(std::ostream &os, Int_t content, Bool_t verbose=kFALSE, TString indent="") const ;
39 
40  virtual void attach(const RooArgSet& params) ;
41 
42 protected:
43 
44  virtual void initGenerator(const RooArgSet &theEvent);
45  virtual void generateEvent(RooArgSet &theEvent, Int_t remaining);
46 
47  void updateCCDTable() ;
48 
49 
50  RooProdGenContext(const RooProdGenContext& other) ;
51 
52  RooArgSet _commonCats ; // Common category dependents
54  RooSuperCategory* _ccdSuper ; // SuperCategory of Common category dependents
58  RooArgSet _uniObs ; // Observable to be generated with flat distribution
59  TIterator* _uniIter ; // Iterator over uniform observables
62  const RooProdPdf *_pdf ; // Original PDF
63  std::list<RooAbsGenContext*> _gcList ; // List of component generator contexts
64  RooArgSet _ownedMultiProds ; // Owned auxilary multi-term product PDFs
65 
66  ClassDef(RooProdGenContext,0) // Context for efficient generation of a a dataset from a RooProdPdf
67 };
68 
69 #endif
const RooProdPdf * _pdf
RooProdPdf is an efficient implementation of a product of PDFs of the form.
Definition: RooProdPdf.h:31
Basic string class.
Definition: TString.h:137
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
RooArgSet * _ccdCloneSet
const Bool_t kFALSE
Definition: Rtypes.h:92
virtual void attach(const RooArgSet &params)
Attach generator to given event buffer.
Iterator abstract base class.
Definition: TIterator.h:32
RooArgSet _ownedMultiProds
virtual void printMultiline(std::ostream &os, Int_t content, Bool_t verbose=kFALSE, TString indent="") const
Detailed printing interface.
RooRealIntegral performs hybrid numerical/analytical integrals of RooAbsReal objects The class perfor...
#define ClassDef(name, id)
Definition: Rtypes.h:254
virtual ~RooProdGenContext()
Destructor. Delete all owned subgenerator contexts.
This is the base class for the ROOT Random number generators.
Definition: TRandom.h:31
std::list< RooAbsGenContext * > _gcList
RooAbsGenContext is the abstract base class for generator contexts of RooAbsPdf objects.
virtual void setProtoDataOrder(Int_t *lut)
Set the traversal order of the prototype dataset by the given lookup table.
Class RooAcceptReject is a generic toy monte carlo generator implement the accept/reject sampling tec...
bool verbose
static void indent(ostringstream &buf, int indent_level)
RooDataSet is a container class to hold unbinned data.
Definition: RooDataSet.h:29
RooSuperCategory * _ccdSuper
virtual void generateEvent(RooArgSet &theEvent, Int_t remaining)
Generate a single event of the product by generating the components of the products sequentially...
double Double_t
Definition: RtypesCore.h:55
virtual void initGenerator(const RooArgSet &theEvent)
One-time initialization of generator context, forward to component generators.
RooArgSet * _pdfCloneSet
RooProdGenContext(const RooProdPdf &model, const RooArgSet &vars, const RooDataSet *prototype=0, const RooArgSet *auxProto=0, Bool_t _verbose=kFALSE)
RooAbsPdf is the abstract interface for all probability density functions The class provides hybrid a...
Definition: RooAbsPdf.h:41
RooProdGenContext is an efficient implementation of the generator context specific for RooProdPdf PDF...
RooRealIntegral * _pdfCcdInt
RooSuperCategory consolidates several RooAbsCategoryLValue objects into a single category.