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RooGaussian.h
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitModels *
4 * File: $Id: RooGaussian.h,v 1.16 2007/07/12 20:30:49 wouter 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_GAUSSIAN
17#define ROO_GAUSSIAN
18
19#include "RooAbsPdf.h"
20#include "RooRealProxy.h"
21
22class RooAbsReal;
23
24class RooGaussian : public RooAbsPdf {
25public:
27 RooGaussian(const char *name, const char *title,
28 RooAbsReal& _x, RooAbsReal& _mean, RooAbsReal& _sigma);
29 RooGaussian(const RooGaussian& other, const char* name=0);
30 virtual TObject* clone(const char* newname) const override {
31 return new RooGaussian(*this,newname);
32 }
33 inline virtual ~RooGaussian() { }
34
35 Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const override;
36 Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const override;
37
38 Int_t getGenerator(const RooArgSet& directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const override;
39 void generateEvent(Int_t code) override;
40
41protected:
42
46
47 Double_t evaluate() const override;
48 RooSpan<double> evaluateSpan(RooBatchCompute::RunContext& evalData, const RooArgSet* normSet) const override;
49
50private:
51
52 ClassDefOverride(RooGaussian,1) // Gaussian PDF
53};
54
55#endif
int Int_t
Definition: RtypesCore.h:45
bool Bool_t
Definition: RtypesCore.h:63
double Double_t
Definition: RtypesCore.h:59
const Bool_t kTRUE
Definition: RtypesCore.h:100
#define ClassDefOverride(name, id)
Definition: Rtypes.h:329
char name[80]
Definition: TGX11.cxx:110
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:61
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:35
Plain Gaussian p.d.f.
Definition: RooGaussian.h:24
RooRealProxy mean
Definition: RooGaussian.h:44
void generateEvent(Int_t code) override
Interface for generation of an event using the algorithm corresponding to the specified code.
Int_t getGenerator(const RooArgSet &directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const override
Load generatedVars with the subset of directVars that we can generate events for, and return a code t...
RooRealProxy sigma
Definition: RooGaussian.h:45
RooSpan< double > evaluateSpan(RooBatchCompute::RunContext &evalData, const RooArgSet *normSet) const override
Compute multiple values of Gaussian distribution.
Definition: RooGaussian.cxx:66
virtual TObject * clone(const char *newname) const override
Definition: RooGaussian.h:30
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const override
Interface function getAnalyticalIntergral advertises the analytical integrals that are supported.
Definition: RooGaussian.cxx:72
Double_t evaluate() const override
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooGaussian.cxx:56
virtual ~RooGaussian()
Definition: RooGaussian.h:33
RooRealProxy x
Definition: RooGaussian.h:43
Double_t analyticalIntegral(Int_t code, const char *rangeName=0) const override
Implements the actual analytical integral(s) advertised by getAnalyticalIntegral.
Definition: RooGaussian.cxx:81
A simple container to hold a batch of data values.
Definition: RooSpan.h:34
Mother of all ROOT objects.
Definition: TObject.h:37
This struct enables passing computation data around between elements of a computation graph.
Definition: RunContext.h:31