ROOT   Reference Guide
RooPolynomial.h
Go to the documentation of this file.
1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitModels *
4 * File: $Id: RooPolynomial.h,v 1.8 2007/05/11 09:13:07 verkerke Exp$
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 *
11 * *
12 * Redistribution and use in source and binary forms, *
13 * with or without modification, are permitted according to the terms *
15 *****************************************************************************/
16#ifndef ROO_POLYNOMIAL
17#define ROO_POLYNOMIAL
18
19#include <vector>
20
21#include "RooAbsPdf.h"
22#include "RooRealProxy.h"
23#include "RooListProxy.h"
24
25class RooRealVar;
26class RooArgList ;
27
28class RooPolynomial : public RooAbsPdf {
29public:
30
32 RooPolynomial(const char* name, const char* title, RooAbsReal& x) ;
33 RooPolynomial(const char *name, const char *title,
34 RooAbsReal& _x, const RooArgList& _coefList, Int_t lowestOrder=1) ;
35
36 RooPolynomial(const RooPolynomial& other, const char* name = 0);
37 virtual TObject* clone(const char* newname) const { return new RooPolynomial(*this, newname); }
38 virtual ~RooPolynomial() ;
39
40 Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const ;
41 Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const ;
42
43protected:
44
48
49 mutable std::vector<Double_t> _wksp; //! do not persist
50
51 /// Evaluation
52 Double_t evaluate() const;
53 RooSpan<double> evaluateBatch(std::size_t begin, std::size_t batchSize) const;
54
55
56 ClassDef(RooPolynomial,1) // Polynomial PDF
57};
58
59#endif
double Double_t
Definition: RtypesCore.h:57
#define ClassDef(name, id)
Definition: Rtypes.h:322
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
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgList.h:21
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:28
RooListProxy is the concrete proxy for RooArgList objects.
Definition: RooListProxy.h:25
RooPolynomial implements a polynomial p.d.f of the form.
Definition: RooPolynomial.h:28
virtual TObject * clone(const char *newname) const
Definition: RooPolynomial.h:37
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const
Advertise to RooFit that this function can be analytically integrated.
RooRealProxy _x
Definition: RooPolynomial.h:45
Double_t analyticalIntegral(Int_t code, const char *rangeName=0) const
Do the analytical integral according to the code that was returned by getAnalyticalIntegral().
Int_t _lowestOrder
Definition: RooPolynomial.h:47
RooPolynomial()
coverity[UNINIT_CTOR]
Double_t evaluate() const
do not persist
RooListProxy _coefList
Definition: RooPolynomial.h:46
RooSpan< double > evaluateBatch(std::size_t begin, std::size_t batchSize) const
Evaluate function for a batch of input data points.
std::vector< Double_t > _wksp
Definition: RooPolynomial.h:49
virtual ~RooPolynomial()
Destructor.
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
Double_t x[n]
Definition: legend1.C:17