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RooAdaptiveIntegratorND.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_ADAPTIVE_INTEGRATOR_ND
17#define ROO_ADAPTIVE_INTEGRATOR_ND
18
19#include "RooAbsIntegrator.h"
20#include "RooNumIntConfig.h"
21#include "TString.h"
22
23namespace ROOT { namespace Math { class AdaptiveIntegratorMultiDim ; } }
25
27public:
28
29 // Constructors, assignment etc
32
33 virtual RooAbsIntegrator* clone(const RooAbsFunc& function, const RooNumIntConfig& config) const ;
35
36 virtual Bool_t checkLimits() const;
37 virtual Double_t integral(const Double_t *yvec=0) ;
38
41
42 virtual Bool_t canIntegrate1D() const { return kFALSE ; }
43 virtual Bool_t canIntegrate2D() const { return kTRUE ; }
44 virtual Bool_t canIntegrateND() const { return kTRUE ; }
45 virtual Bool_t canIntegrateOpenEnded() const { return kFALSE ; }
46
47 virtual Bool_t setUseIntegrandLimits(Bool_t flag) {_useIntegrandLimits = flag ; return kTRUE ; }
48
49protected:
50
52
53 Bool_t _useIntegrandLimits; // If true limits of function binding are ued
54
55 mutable Double_t* _xmin ; // Lower bound in each dimension
56 mutable Double_t* _xmax ; // Upper bound in each dimension
57 Double_t _epsRel ; // Relative precision
58 Double_t _epsAbs ; // Absolute precision
59 Int_t _nmax ; // Max number of divisions
60 Int_t _nError ; // Number of error occurrences
61 Int_t _nWarn ; // Max number of warnings to be issued ;
62 RooMultiGenFunction* _func ; //! ROOT::Math multi-parameter function binding
64 TString _intName ; // Integrand name
65
66 friend class RooNumIntFactory ;
67 static void registerIntegrator(RooNumIntFactory& fact) ;
68
69 ClassDef(RooAdaptiveIntegratorND,0) // N-dimensional adaptive integration (interface to MathCore integrator)
70};
71
72#endif
int Int_t
Definition: RtypesCore.h:43
const Bool_t kFALSE
Definition: RtypesCore.h:90
bool Bool_t
Definition: RtypesCore.h:61
double Double_t
Definition: RtypesCore.h:57
const Bool_t kTRUE
Definition: RtypesCore.h:89
#define ClassDef(name, id)
Definition: Rtypes.h:322
float xmin
Definition: THbookFile.cxx:93
float xmax
Definition: THbookFile.cxx:93
Class for adaptive quadrature integration in multi-dimensions using rectangular regions.
Abstract interface for evaluating a real-valued function of one real variable and performing numerica...
Definition: RooAbsFunc.h:23
RooAbsIntegrator is the abstract interface for integrators of real-valued functions that implement th...
virtual Bool_t setLimits(Double_t *, Double_t *)
RooAdaptiveIntegratorND implements an adaptive one-dimensional numerical integration algorithm.
virtual Bool_t canIntegrateND() const
virtual Double_t integral(const Double_t *yvec=0)
Evaluate integral at given function binding parameter values.
virtual Bool_t checkLimits() const
Check that our integration range is finite and otherwise return kFALSE.
virtual ~RooAdaptiveIntegratorND()
Destructor.
virtual Bool_t canIntegrateOpenEnded() const
virtual RooAbsIntegrator * clone(const RooAbsFunc &function, const RooNumIntConfig &config) const
Virtual constructor with given function and configuration. Needed by RooNumIntFactory.
virtual Bool_t canIntegrate1D() const
virtual Bool_t canIntegrate2D() const
RooAdaptiveIntegratorND(const RooAdaptiveIntegratorND &)
static void registerIntegrator(RooNumIntFactory &fact)
Register RooAdaptiveIntegratorND, its parameters, dependencies and capabilities with RooNumIntFactory...
RooMultiGenFunction * _func
ROOT::Math::AdaptiveIntegratorMultiDim * _integrator
ROOT::Math multi-parameter function binding.
Bool_t setLimits(Double_t *xmin, Double_t *xmax)
Change our integration limits.
virtual Bool_t setUseIntegrandLimits(Bool_t flag)
Interface function that allows to defer limit definition to integrand definition.
Lightweight interface adaptor that exports a RooAbsReal as a ROOT::Math::IMultiGenFunction.
RooNumIntConfig holds the configuration parameters of the various numeric integrators used by RooReal...
RooNumIntFactory is a factory to instantiate numeric integrators from a given function binding and a ...
Basic string class.
Definition: TString.h:131
Namespace for new Math classes and functions.
void function(const Char_t *name_, T fun, const Char_t *docstring=0)
Definition: RExports.h:151
tbb::task_arena is an alias of tbb::interface7::task_arena, which doesn't allow to forward declare tb...
Definition: StringConv.hxx:21