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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#include "RooTrace.h"
22
23class RooRealVar;
24
25class RooGaussian : public RooAbsPdf {
26public:
28 RooGaussian(const char *name, const char *title,
29 RooAbsReal& _x, RooAbsReal& _mean, RooAbsReal& _sigma);
30 RooGaussian(const RooGaussian& other, const char* name=0);
31 virtual TObject* clone(const char* newname) const override {
32 return new RooGaussian(*this,newname);
33 }
34 inline virtual ~RooGaussian() { }
35
36 Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const override;
37 Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const override;
38
39 Int_t getGenerator(const RooArgSet& directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const override;
40 void generateEvent(Int_t code) override;
41
42protected:
43
47
48 Double_t evaluate() const override;
49 RooSpan<double> evaluateBatch(std::size_t begin, std::size_t batchSize) const override;
50
51private:
52
53 ClassDefOverride(RooGaussian,1) // Gaussian PDF
54};
55
56#endif
int Int_t
Definition: RtypesCore.h:43
bool Bool_t
Definition: RtypesCore.h:61
double Double_t
Definition: RtypesCore.h:57
const Bool_t kTRUE
Definition: RtypesCore.h:89
#define ClassDefOverride(name, id)
Definition: Rtypes.h:326
char name[80]
Definition: TGX11.cxx:109
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:60
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:28
Plain Gaussian p.d.f.
Definition: RooGaussian.h:25
RooSpan< double > evaluateBatch(std::size_t begin, std::size_t batchSize) const override
Compute in batches.
Definition: RooGaussian.cxx:99
RooRealProxy mean
Definition: RooGaussian.h:45
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:46
virtual TObject * clone(const char *newname) const override
Definition: RooGaussian.h:31
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const override
Interface function getAnalyticalIntergral advertises the analytical integrals that are supported.
Double_t evaluate() const override
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooGaussian.cxx:61
virtual ~RooGaussian()
Definition: RooGaussian.h:34
RooRealProxy x
Definition: RooGaussian.h:44
Double_t analyticalIntegral(Int_t code, const char *rangeName=0) const override
Implements the actual analytical integral(s) advertised by getAnalyticalIntegral.
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:35
A simple container to hold a batch of data values.
Definition: RooSpan.h:32
Mother of all ROOT objects.
Definition: TObject.h:37