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RooNumCdf.cxx
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1 /*****************************************************************************
2 * Project: RooFit *
3 * *
4 * Copyright (c) 2000-2005, Regents of the University of California *
5 * and Stanford University. All rights reserved. *
6 * *
7 * Redistribution and use in source and binary forms, *
8 * with or without modification, are permitted according to the terms *
9 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
10 *****************************************************************************/
11
12/**
13\file RooNumCdf.cxx
14\class RooNumCdf
15\ingroup Roofitcore
16
17Class RooNumCdf is an implementation of RooNumRunningInt specialized
18to calculate cumulative distribution functions from p.d.f.s. The main
19difference between RooNumCdf and RooNumRunningInt is that this class
20imposes special end-point conditions on the interpolated histogram
21that represents the output so that the value at the lower bound is
22guaranteed to converge to exactly zero and that the value at the
23upper bound is guaranteed to converge to exactly one, at all interpolation
24orders.
25**/
26
27#include "Riostream.h"
28
29#include "RooAbsPdf.h"
30#include "RooNumCdf.h"
31#include "RooAbsReal.h"
32#include "RooMsgService.h"
33#include "RooDataHist.h"
34#include "RooHistPdf.h"
35#include "RooRealVar.h"
36
37using namespace std;
38
40 ;
41
42
43
44////////////////////////////////////////////////////////////////////////////////
45/// Construct a cumulative distribution function from given input p.d.f over observable x.
46/// using a numeric sampling algorithm. Use binning named 'bname' to control sampling
47/// granularity
48
49RooNumCdf::RooNumCdf(const char *name, const char *title, RooAbsPdf& _pdf, RooRealVar& _x, const char* bname) :
50 RooNumRunningInt(name,title,_pdf,_x,bname)
51 {
52 }
53
54
55
56////////////////////////////////////////////////////////////////////////////////
57/// Copy constructor
58
59RooNumCdf::RooNumCdf(const RooNumCdf& other, const char* name) :
61 {
62 }
63
64
65
66////////////////////////////////////////////////////////////////////////////////
67/// Destructor
68
70{
71}
72
73
74
75////////////////////////////////////////////////////////////////////////////////
76/// Fill cache using running integral cache elements calculate()
77/// method with specification of cdf-specific boundary conditions
78
80{
81 RICacheElem& riCache = static_cast<RICacheElem&>(cache) ;
82 riCache.calculate(kTRUE) ;
83}
84
85
const Bool_t kTRUE
Definition: RtypesCore.h:89
#define ClassImp(name)
Definition: Rtypes.h:361
char name[80]
Definition: TGX11.cxx:109
Class RooNumCdf is an implementation of RooNumRunningInt specialized to calculate cumulative distribu...
Definition: RooNumCdf.h:17
RooNumCdf(const char *name, const char *title, RooAbsPdf &_pdf, RooRealVar &_x, const char *binningName="cache")
Construct a cumulative distribution function from given input p.d.f over observable x.
Definition: RooNumCdf.cxx:49
virtual ~RooNumCdf()
Destructor.
Definition: RooNumCdf.cxx:69
virtual void fillCacheObject(FuncCacheElem &cacheFunc) const
Fill cache using running integral cache elements calculate() method with specification of cdf-specifi...
Definition: RooNumCdf.cxx:79
void calculate(Bool_t cdfmode)
Calculate the numeric running integral and store the result in the cache histogram provided by RooAbs...
Class RooNumRunningInt is an implementation of RooAbsCachedReal that represents a running integral.
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:35