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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
19#include "RooAbsPdf.h"
20#include "RooRealProxy.h"
22class RooRealVar;
24class RooLandau : public RooAbsPdf {
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 virtual TObject* clone(const char* newname) const { return new RooLandau(*this,newname); }
30 inline virtual ~RooLandau() { }
32 Int_t getGenerator(const RooArgSet& directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const;
33 void generateEvent(Int_t code);
41 Double_t evaluate() const ;
46 ClassDef(RooLandau,1) // Landau Distribution PDF
double Double_t
Definition: RtypesCore.h:59
const Bool_t kTRUE
Definition: RtypesCore.h:91
#define ClassDef(name, id)
Definition: Rtypes.h:325
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:29
Landau distribution p.d.f.
Definition: RooLandau.h:24
Definition: RooLandau.h:26
void generateEvent(Int_t code)
Interface for generation of an event using the algorithm corresponding to the specified code.
Definition: RooLandau.cxx:78
Double_t evaluate() const
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooLandau.cxx:57
RooRealProxy x
Definition: RooLandau.h:37
RooRealProxy sigma
Definition: RooLandau.h:39
virtual ~RooLandau()
Definition: RooLandau.h:30
virtual TObject * clone(const char *newname) const
Definition: RooLandau.h:29
Int_t getGenerator(const RooArgSet &directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const
Load generatedVars with the subset of directVars that we can generate events for, and return a code t...
Definition: RooLandau.cxx:70
RooRealProxy mean
Definition: RooLandau.h:38
RooSpan< double > evaluateSpan(RooBatchCompute::RunContext &evalData, const RooArgSet *normSet) const
Compute multiple values of Landau distribution.
Definition: RooLandau.cxx:64
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:39
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