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RooLandau.h
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitModels *
4 * File: $Id: RooLandau.h,v 1.5 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_LANDAU
17#define ROO_LANDAU
18
19#include "RooAbsPdf.h"
20#include "RooRealProxy.h"
21
22class RooRealVar;
23
24class RooLandau : public RooAbsPdf {
25public:
26 RooLandau() {} ;
27 RooLandau(const char *name, const char *title, RooAbsReal& _x, RooAbsReal& _mean, RooAbsReal& _sigma);
28 RooLandau(const RooLandau& other, const char* name=0);
29 TObject* clone(const char* newname) const override { return new RooLandau(*this,newname); }
30 inline ~RooLandau() override { }
31
32 Int_t getGenerator(const RooArgSet& directVars, RooArgSet &generateVars, bool staticInitOK=true) const override;
33 void generateEvent(Int_t code) override;
34
35protected:
36
40
41 double evaluate() const override ;
42 void computeBatch(cudaStream_t*, double* output, size_t nEvents, RooFit::Detail::DataMap const&) const override;
43 inline bool canComputeBatchWithCuda() const override { return true; }
44
45private:
46
47 ClassDefOverride(RooLandau,1) // Landau Distribution PDF
48};
49
50#endif
#define ClassDefOverride(name, id)
Definition: Rtypes.h:339
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:64
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:57
Landau distribution p.d.f.
Definition: RooLandau.h:24
~RooLandau() override
Definition: RooLandau.h:30
RooLandau()
Definition: RooLandau.h:26
void generateEvent(Int_t code) override
Interface for generation of an event using the algorithm corresponding to the specified code.
Definition: RooLandau.cxx:80
TObject * clone(const char *newname) const override
Definition: RooLandau.h:29
RooRealProxy x
Definition: RooLandau.h:37
RooRealProxy sigma
Definition: RooLandau.h:39
void computeBatch(cudaStream_t *, double *output, size_t nEvents, RooFit::Detail::DataMap const &) const override
Compute multiple values of Landau distribution.
Definition: RooLandau.cxx:63
double evaluate() const override
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooLandau.cxx:56
bool canComputeBatchWithCuda() const override
Definition: RooLandau.h:43
Int_t getGenerator(const RooArgSet &directVars, RooArgSet &generateVars, bool staticInitOK=true) const override
Load generatedVars with the subset of directVars that we can generate events for, and return a code t...
Definition: RooLandau.cxx:72
RooRealProxy mean
Definition: RooLandau.h:38
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:40
Mother of all ROOT objects.
Definition: TObject.h:37
std::map< DataKey, RooSpan< const double > > DataMap
Definition: DataMap.h:59
static void output()