Logo 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 *
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_POLYNOMIAL
17 #define ROO_POLYNOMIAL
18 
19 #include <vector>
20 
21 #include "RooAbsPdf.h"
22 #include "RooRealProxy.h"
23 #include "RooListProxy.h"
24 
25 class RooRealVar;
26 class RooArgList ;
27 
28 class RooPolynomial : public RooAbsPdf {
29 public:
30 
31  RooPolynomial() ;
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 
43 protected:
44 
48 
49  mutable std::vector<Double_t> _wksp; //! do not persist
50 
51  /// Evaluation
52  Double_t evaluate() const;
53  RooSpan<double> evaluateSpan(BatchHelpers::RunContext& evalData, const RooArgSet* normSet) const;
54 
55  ClassDef(RooPolynomial,1) // Polynomial PDF
56 };
57 
58 #endif
RooPolynomial::getAnalyticalIntegral
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const
Advertise to RooFit that this function can be analytically integrated.
Definition: RooPolynomial.cxx:170
RooPolynomial::~RooPolynomial
virtual ~RooPolynomial()
Destructor.
Definition: RooPolynomial.cxx:123
RooArgList
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgList.h:21
RooPolynomial::clone
virtual TObject * clone(const char *newname) const
Definition: RooPolynomial.h:37
RooPolynomial::_wksp
std::vector< Double_t > _wksp
Definition: RooPolynomial.h:49
x
Double_t x[n]
Definition: legend1.C:17
RooAbsReal
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:61
RooPolynomial::analyticalIntegral
Double_t analyticalIntegral(Int_t code, const char *rangeName=0) const
Do the analytical integral according to the code that was returned by getAnalyticalIntegral().
Definition: RooPolynomial.cxx:178
BatchHelpers::RunContext
Data that has to be passed around when evaluating functions / PDFs.
Definition: RunContext.h:32
RooPolynomial::RooPolynomial
RooPolynomial()
coverity[UNINIT_CTOR]
Definition: RooPolynomial.cxx:49
RooPolynomial::_x
RooRealProxy _x
Definition: RooPolynomial.h:45
RooAbsPdf.h
RooPolynomial
RooPolynomial implements a polynomial p.d.f of the form.
Definition: RooPolynomial.h:28
RooRealProxy.h
RooListProxy
RooListProxy is the concrete proxy for RooArgList objects.
Definition: RooListProxy.h:24
RooPolynomial::_lowestOrder
Int_t _lowestOrder
Definition: RooPolynomial.h:47
RooListProxy.h
RooTemplateProxy< RooAbsReal >
Double_t
double Double_t
Definition: RtypesCore.h:59
TObject
Mother of all ROOT objects.
Definition: TObject.h:37
ClassDef
#define ClassDef(name, id)
Definition: Rtypes.h:325
name
char name[80]
Definition: TGX11.cxx:110
RooPolynomial::evaluateSpan
RooSpan< double > evaluateSpan(BatchHelpers::RunContext &evalData, const RooArgSet *normSet) const
Compute multiple values of Polynomial.
Definition: RooPolynomial.cxx:151
RooPolynomial::evaluate
Double_t evaluate() const
do not persist
Definition: RooPolynomial.cxx:128
RooAbsPdf
Definition: RooAbsPdf.h:43
RooRealVar
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:37
RooPolynomial::_coefList
RooListProxy _coefList
Definition: RooPolynomial.h:46
RooSpan
A simple container to hold a batch of data values.
Definition: RooSpan.h:34
RooArgSet
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:29
int