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2 * Project: RooFit *
3 * Package: RooFitModels *
4 * File: $Id: RooChebychev.h,v 1.6 2007/05/11 09:13:07 verkerke Exp $
5 * Authors: *
6 * GR, Gerhard Raven, UC San Diego, Gerhard.Raven@slac.stanford.edu
7 * *
8 * Copyright (c) 2000-2005, Regents of the University of California *
9 * and Stanford University. All rights reserved. *
10 * *
11 * Redistribution and use in source and binary forms, *
12 * with or without modification, are permitted according to the terms *
13 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
14 *****************************************************************************/
18#include "RooAbsPdf.h"
19#include "RooRealProxy.h"
20#include "RooListProxy.h"
22class RooRealVar;
23class RooArgList ;
25class RooChebychev : public RooAbsPdf {
29 RooChebychev(const char *name, const char *title,
32 RooChebychev(const RooChebychev& other, const char *name = nullptr);
33 TObject* clone(const char* newname) const override { return new RooChebychev(*this, newname); }
35 Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=nullptr) const override ;
36 double analyticalIntegral(Int_t code, const char* rangeName=nullptr) const override ;
38 void selectNormalizationRange(const char* rangeName=nullptr, bool force=false) override ;
40 void translate(RooFit::Detail::CodeSquashContext &ctx) const override;
41 std::string
42 buildCallToAnalyticIntegral(Int_t code, const char *rangeName, RooFit::Detail::CodeSquashContext &ctx) const override;
44 private:
47 mutable TNamed* _refRangeName = nullptr;
49 double evaluate() const override;
50 void computeBatch(double* output, size_t nEvents, RooFit::Detail::DataMap const&) const override;
51 inline bool canComputeBatchWithCuda() const override { return true; }
53 double evalAnaInt(const double a, const double b) const;
55 ClassDefOverride(RooChebychev,2) // Chebychev polynomial PDF
#define b(i)
Definition RSha256.hxx:100
#define a(i)
Definition RSha256.hxx:99
#define ClassDefOverride(name, id)
Definition Rtypes.h:341
char name[80]
Definition TGX11.cxx:110
Abstract interface for all probability density functions.
Definition RooAbsPdf.h:40
Abstract base class for objects that represent a real value and implements functionality common to al...
Definition RooAbsReal.h:59
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition RooArgList.h:22
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition RooArgSet.h:55
Chebychev polynomial p.d.f.
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=nullptr) const override
Interface function getAnalyticalIntergral advertises the analytical integrals that are supported.
double analyticalIntegral(Int_t code, const char *rangeName=nullptr) const override
Implements the actual analytical integral(s) advertised by getAnalyticalIntegral.
bool canComputeBatchWithCuda() const override
RooRealProxy _x
std::string buildCallToAnalyticIntegral(Int_t code, const char *rangeName, RooFit::Detail::CodeSquashContext &ctx) const override
This function defines the analytical integral translation for the class.
void selectNormalizationRange(const char *rangeName=nullptr, bool force=false) override
Interface function to force use of a given normalization range to interpret function value.
void translate(RooFit::Detail::CodeSquashContext &ctx) const override
This function defines a translation for each RooAbsReal based object that can be used to express the ...
double evalAnaInt(const double a, const double b) const
TObject * clone(const char *newname) const override
TNamed * _refRangeName
void computeBatch(double *output, size_t nEvents, RooFit::Detail::DataMap const &) const override
Compute multiple values of Chebychev.
RooListProxy _coefList
double evaluate() const override
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
A class to maintain the context for squashing of RooFit models into code.
Variable that can be changed from the outside.
Definition RooRealVar.h:37
The TNamed class is the base class for all named ROOT classes.
Definition TNamed.h:29
Mother of all ROOT objects.
Definition TObject.h:41
static void output()