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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 
22 class RooAbsReal;
23 
24 class RooGaussian : public RooAbsPdf {
25 public:
26  RooGaussian() { };
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 
41 protected:
42 
46 
47  Double_t evaluate() const override;
48  RooSpan<double> evaluateSpan(RooBatchCompute::RunContext& evalData, const RooArgSet* normSet) const override;
49 
50 private:
51 
52  ClassDefOverride(RooGaussian,1) // Gaussian PDF
53 };
54 
55 #endif
RooGaussian::x
RooRealProxy x
Definition: RooGaussian.h:43
kTRUE
const Bool_t kTRUE
Definition: RtypesCore.h:91
RooGaussian::evaluate
Double_t evaluate() const override
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooGaussian.cxx:56
RooGaussian
Plain Gaussian p.d.f.
Definition: RooGaussian.h:24
RooAbsReal
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:61
RooGaussian::analyticalIntegral
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
RooGaussian::evaluateSpan
RooSpan< double > evaluateSpan(RooBatchCompute::RunContext &evalData, const RooArgSet *normSet) const override
Compute multiple values of Gaussian distribution.
Definition: RooGaussian.cxx:66
ClassDefOverride
#define ClassDefOverride(name, id)
Definition: Rtypes.h:329
bool
RooGaussian::getGenerator
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...
Definition: RooGaussian.cxx:119
RooGaussian::clone
virtual TObject * clone(const char *newname) const override
Definition: RooGaussian.h:30
RooGaussian::RooGaussian
RooGaussian()
Definition: RooGaussian.h:26
RooAbsPdf.h
RooGaussian::generateEvent
void generateEvent(Int_t code) override
Interface for generation of an event using the algorithm corresponding to the specified code.
Definition: RooGaussian.cxx:128
RooRealProxy.h
RooGaussian::sigma
RooRealProxy sigma
Definition: RooGaussian.h:45
RooTemplateProxy< RooAbsReal >
Double_t
double Double_t
Definition: RtypesCore.h:59
RooGaussian::mean
RooRealProxy mean
Definition: RooGaussian.h:44
RooGaussian::~RooGaussian
virtual ~RooGaussian()
Definition: RooGaussian.h:33
TObject
Mother of all ROOT objects.
Definition: TObject.h:37
RooGaussian::getAnalyticalIntegral
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
name
char name[80]
Definition: TGX11.cxx:110
RooAbsPdf
Definition: RooAbsPdf.h:43
RooBatchCompute::RunContext
Data that has to be passed around when evaluating functions / PDFs.
Definition: RunContext.h:32
RooSpan
A simple container to hold a batch of data values.
Definition: RooSpan.h:34
RooArgSet
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:29
int