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RooPolyVar.h
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1 /*****************************************************************************
2  * Project: RooFit *
3  * Package: RooFitCore *
4  * File: $Id: RooPolyVar.h,v 1.7 2007/05/11 09:11:30 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_POLY_VAR
17 #define ROO_POLY_VAR
18 
19 #include <vector>
20 
21 #include "RooAbsReal.h"
22 #include "RooRealProxy.h"
23 #include "RooListProxy.h"
24 
25 class RooRealVar;
26 class RooArgList ;
27 
28 class RooPolyVar : public RooAbsReal {
29 public:
30 
31  RooPolyVar() ;
32  RooPolyVar(const char* name, const char* title, RooAbsReal& x) ;
33  RooPolyVar(const char *name, const char *title,
34  RooAbsReal& _x, const RooArgList& _coefList, Int_t lowestOrder=0) ;
35 
36  RooPolyVar(const RooPolyVar& other, const char* name = 0);
37  virtual TObject* clone(const char* newname) const { return new RooPolyVar(*this, newname); }
38  virtual ~RooPolyVar() ;
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  Double_t evaluate() const;
52 
53  ClassDef(RooPolyVar,1) // Polynomial function
54 };
55 
56 #endif
virtual ~RooPolyVar()
Destructor.
Definition: RooPolyVar.cxx:112
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:28
Int_t getAnalyticalIntegral(RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const
Advertise that we can internally integrate over x.
Definition: RooPolyVar.cxx:146
Double_t x[n]
Definition: legend1.C:17
#define ClassDef(name, id)
Definition: Rtypes.h:322
Class RooPolyVar is a RooAbsReal implementing a polynomial in terms of a list of RooAbsReal coefficie...
Definition: RooPolyVar.h:28
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:35
RooListProxy is the concrete proxy for RooArgList objects.
Definition: RooListProxy.h:25
Int_t _lowestOrder
Definition: RooPolyVar.h:47
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:60
virtual TObject * clone(const char *newname) const
Definition: RooPolyVar.h:37
Mother of all ROOT objects.
Definition: TObject.h:37
Double_t evaluate() const
do not persist
Definition: RooPolyVar.cxx:121
RooListProxy _coefList
Definition: RooPolyVar.h:46
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgList.h:21
Double_t analyticalIntegral(Int_t code, const char *rangeName=0) const
Calculate and return analytical integral over x.
Definition: RooPolyVar.cxx:157
std::vector< Double_t > _wksp
Definition: RooPolyVar.h:49
RooRealProxy _x
Definition: RooPolyVar.h:45
RooPolyVar()
Default constructor.
Definition: RooPolyVar.cxx:47
char name[80]
Definition: TGX11.cxx:109