Logo ROOT   master
Reference Guide
RooRecursiveFraction.h
Go to the documentation of this file.
1 /*****************************************************************************
2  * Project: RooFit *
3  * Package: RooFitCore *
4  * File: $Id$
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_RECURSIVE_FRACTION
17 #define ROO_RECURSIVE_FRACTION
18 
19 #include "RooAbsReal.h"
20 #include "RooListProxy.h"
21 
22 class RooRealVar;
23 class RooArgList ;
24 
26 public:
27 
29  RooRecursiveFraction(const char *name, const char *title, const RooArgList& fracSet) ;
30  virtual ~RooRecursiveFraction() ;
31 
32  RooRecursiveFraction(const RooRecursiveFraction& other, const char* name = 0);
33  virtual TObject* clone(const char* newname) const { return new RooRecursiveFraction(*this, newname); }
34 
35 protected:
36 
38 
39  Double_t evaluate() const;
40 
41  ClassDef(RooRecursiveFraction,1) // Recursive fraction formula f1*(1-f2)*(1-f3) etc...
42 } ;
43 
44 #endif
RooRecursiveFraction()
Default constructor.
virtual TObject * clone(const char *newname) const
#define ClassDef(name, id)
Definition: Rtypes.h:322
virtual ~RooRecursiveFraction()
Destructor.
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
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:60
Mother of all ROOT objects.
Definition: TObject.h:37
Double_t evaluate() const
Calculate and return value of .
Class RooRecursiveFraction is a RooAbsReal implementation that calculates the plain fraction of sum o...
RooArgList is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgList.h:21
char name[80]
Definition: TGX11.cxx:109