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2 * Project: RooFit *
3 * Package: RooFitCore *
4 * File: $Id: RooErrorVar.h,v 1.16 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_ERROR_VAR
17#define ROO_ERROR_VAR
19#include "RooAbsReal.h"
20#include "RooRealVar.h"
21#include "RooRealProxy.h"
23#include <list>
24#include <string>
30 // Constructors, assignment etc.
31 inline RooErrorVar() {
32 // Default constructor
33 }
34 RooErrorVar(const char *name, const char *title, const RooRealVar& input) ;
35 RooErrorVar(const RooErrorVar& other, const char* name=0);
36 virtual TObject* clone(const char* newname) const { return new RooErrorVar(*this,newname); }
37 virtual ~RooErrorVar() ;
39 virtual Double_t getValV(const RooArgSet* set=0) const ;
41 virtual Double_t evaluate() const {
42 // return error of input RooRealVar
43 return ((RooRealVar&)_realVar.arg()).getError() ;
44 }
46 virtual void setVal(Double_t value) {
47 // Set error of input RooRealVar to value
48 ((RooRealVar&)_realVar.arg()).setVal(value) ;
49 }
51 inline virtual Bool_t isFundamental() const {
52 // Return kTRUE as we implement a fundamental type of AbsArg that can be stored in a dataset
53 return kTRUE ;
54 }
56 // I/O streaming interface (machine readable)
57 virtual Bool_t readFromStream(std::istream& is, Bool_t compact, Bool_t verbose=kFALSE) ;
58 virtual void writeToStream(std::ostream& os, Bool_t compact) const ;
60 // Set/get finite fit range limits
61 inline void setMin(Double_t value) {
62 // Set lower bound of default range to value
63 setMin(0,value) ;
64 }
65 inline void setMax(Double_t value) {
66 // Set upper bound of default range to value
67 setMax(0,value) ;
68 }
69 inline void setRange(Double_t min, Double_t max) {
70 // Set default ranges to [min,max]
71 setRange(0,min,max) ;
72 }
73 void setMin(const char* name, Double_t value) ;
74 void setMax(const char* name, Double_t value) ;
75 void setRange(const char* name, Double_t min, Double_t max) ;
77 void setBins(Int_t nBins);
78 void setBinning(const RooAbsBinning& binning, const char* name=0) ;
79 const RooAbsBinning& getBinning(const char* name=0, Bool_t verbose=kTRUE, Bool_t createOnTheFly=kFALSE) const ;
80 RooAbsBinning& getBinning(const char* name=0, Bool_t verbose=kTRUE, Bool_t createOnTheFly=kFALSE) ;
81 Bool_t hasBinning(const char* name) const ;
82 std::list<std::string> getBinningNames() const ;
84 // Set infinite fit range limits
85 void removeMin(const char* name=0);
86 void removeMax(const char* name=0);
87 void removeRange(const char* name=0);
89 using RooAbsRealLValue::operator= ;
94 RooLinkedList _altBinning ; //! Optional alternative ranges and binnings
96 void syncCache(const RooArgSet* set=0) ;
98 RooRealProxy _realVar ; // RealVar with the original error
99 RooAbsBinning* _binning ; //! Pointer to default binning definition
101 ClassDef(RooErrorVar,1) // RooAbsRealLValue representation of an error of a RooRealVar
int Int_t
Definition: RtypesCore.h:45
const Bool_t kFALSE
Definition: RtypesCore.h:101
bool Bool_t
Definition: RtypesCore.h:63
double Double_t
Definition: RtypesCore.h:59
const Bool_t kTRUE
Definition: RtypesCore.h:100
#define ClassDef(name, id)
Definition: Rtypes.h:325
char name[80]
Definition: TGX11.cxx:110
RooAbsBinning is the abstract base class for RooRealVar binning definitions.
Definition: RooAbsBinning.h:26
RooAbsRealLValue is the common abstract base class for objects that represent a real value that may a...
virtual void setVal(Double_t value)=0
Set the current value of the object. Needs to be overridden by implementations.
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:35
RooErrorVar is an auxilary class that represents the error of a RooRealVar as a seperate object.
Definition: RooErrorVar.h:28
void setBinning(const RooAbsBinning &binning, const char *name=0)
Store given binning with this variable under the given name.
void setRange(Double_t min, Double_t max)
Definition: RooErrorVar.h:69
void removeRange(const char *name=0)
Remove both upper and lower bounds from named binning, or default binning if name is null.
void syncCache(const RooArgSet *set=0)
Optional alternative ranges and binnings.
virtual TObject * clone(const char *newname) const
Definition: RooErrorVar.h:36
void setMin(Double_t value)
Definition: RooErrorVar.h:61
void setMax(Double_t value)
Definition: RooErrorVar.h:65
virtual Double_t getValV(const RooArgSet *set=0) const
Return value, i.e. error on input variable.
Definition: RooErrorVar.cxx:88
virtual Double_t evaluate() const
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.
Definition: RooErrorVar.h:41
virtual Bool_t readFromStream(std::istream &is, Bool_t compact, Bool_t verbose=kFALSE)
Read object contents from given stream.
RooLinkedList _altBinning
Definition: RooErrorVar.h:94
Bool_t hasBinning(const char *name) const
Return true if we have binning with given name.
Definition: RooErrorVar.cxx:98
virtual Bool_t isFundamental() const
Is this object a fundamental type that can be added to a dataset? Fundamental-type subclasses overrid...
Definition: RooErrorVar.h:51
virtual void setVal(Double_t value)
Set the current value of the object. Needs to be overridden by implementations.
Definition: RooErrorVar.h:46
virtual ~RooErrorVar()
Definition: RooErrorVar.cxx:78
RooAbsBinning * _binning
Definition: RooErrorVar.h:99
virtual void writeToStream(std::ostream &os, Bool_t compact) const
Write value to stream.
std::list< std::string > getBinningNames() const
Get a list of all binning names.
void removeMin(const char *name=0)
Remove lower bound from named binning, or default binning if name is null.
void removeMax(const char *name=0)
Remove upper bound from named binning, or default binning if name is null.
void setBins(Int_t nBins)
Set default binning to nBins uniform bins.
RooRealProxy _realVar
Definition: RooErrorVar.h:98
const RooAbsBinning & getBinning(const char *name=0, Bool_t verbose=kTRUE, Bool_t createOnTheFly=kFALSE) const
Return binning with given name.
RooLinkedList is an collection class for internal use, storing a collection of RooAbsArg pointers in ...
Definition: RooLinkedList.h:38
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:39
const T & arg() const
Return reference to object held in proxy.
RooVectorDataStore uses std::vectors to store data columns.
Mother of all ROOT objects.
Definition: TObject.h:37