ROOT   Reference Guide
RooCurve.h
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitCore *
4 * File: $Id: RooCurve.h,v 1.24 2007/05/11 09:11:30 verkerke Exp$
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_CURVE
17#define ROO_CURVE
18
19#include "TGraph.h"
20#include "RooPlotable.h"
21#include <list>
22#include <vector>
23#include "TMatrixDfwd.h"
24
25class RooAbsReal;
26class RooRealVar;
27class RooAbsFunc;
28class RooArgSet;
29class RooAbsRealLValue ;
30class RooHist ;
31
32class RooCurve : public TGraph, public RooPlotable {
33public:
34 RooCurve();
35 enum WingMode { NoWings=0 ,Straight=1, Extended=2 } ;
36 RooCurve(const RooAbsReal &func, RooAbsRealLValue &x, Double_t xlo, Double_t xhi, Int_t xbins,
37 Double_t scaleFactor= 1, const RooArgSet *normVars= 0, Double_t prec= 1e-3, Double_t resolution= 1e-3,
38 Bool_t shiftToZero=kFALSE, WingMode wmode=Extended, Int_t nEvalError=-1, Int_t doEEVal=kFALSE, Double_t eeVal=0,
39 Bool_t showProgress=kFALSE);
40 RooCurve(const char *name, const char *title, const RooAbsFunc &func, Double_t xlo,
41 Double_t xhi, UInt_t minPoints, Double_t prec= 1e-3, Double_t resolution= 1e-3,
42 Bool_t shiftToZero=kFALSE, WingMode wmode=Extended, Int_t nEvalError=-1, Int_t doEEVal=kFALSE, Double_t eeVal=0);
43 virtual ~RooCurve();
44
45 RooCurve(const char* name, const char* title, const RooCurve& c1, const RooCurve& c2, Double_t scale1=1., Double_t scale2=1.) ;
46
48
52
53
54 virtual void printName(std::ostream& os) const ;
55 virtual void printTitle(std::ostream& os) const ;
56 virtual void printClassName(std::ostream& os) const ;
57 virtual void printMultiline(std::ostream& os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const;
58
59 inline virtual void Print(Option_t *options= 0) const {
60 // Printing interface
62 }
63
64 Double_t chiSquare(const RooHist& hist, int nFitParam) const ;
65 Int_t findPoint(Double_t value, Double_t tolerance=1e-10) const ;
67 Double_t interpolate(Double_t x, Double_t tolerance=1e-10) const ;
68
69 Bool_t isIdentical(const RooCurve& other, Double_t tol=1e-6) const ;
70
71 RooCurve* makeErrorBand(const std::vector<RooCurve*>& variations, Double_t Z=1) const ;
72 RooCurve* makeErrorBand(const std::vector<RooCurve*>& plusVar, const std::vector<RooCurve*>& minusVar, const TMatrixD& V, Double_t Z=1) const ;
73
74protected:
75
76 void calcBandInterval(const std::vector<RooCurve*>& variations,Int_t i,Double_t Z,Double_t& lo, Double_t& hi, Bool_t approxGauss) const ;
77 void calcBandInterval(const std::vector<RooCurve*>& plusVar, const std::vector<RooCurve*>& minusVar, Int_t i, const TMatrixD& V,
78 Double_t Z,Double_t& lo, Double_t& hi) const ;
79
80 void initialize();
81 void addPoints(const RooAbsFunc &func, Double_t xlo, Double_t xhi,
82 Int_t minPoints, Double_t prec, Double_t resolution, WingMode wmode,
83 Int_t numee=0, Bool_t doEEVal=kFALSE, Double_t eeVal=0.,std::list<Double_t>* samplingHint=0) ;
84 void addRange(const RooAbsFunc& func, Double_t x1, Double_t x2, Double_t y1,
85 Double_t y2, Double_t minDy, Double_t minDx,
86 Int_t numee=0, Bool_t doEEVal=kFALSE, Double_t eeVal=0.) ;
87
88
89 void shiftCurveToZero(Double_t prevYMax) ;
90
91 Bool_t _showProgress ; //! Show progress indication when adding points
92
93 ClassDef(RooCurve,1) // 1-dimensional smooth curve for use in RooPlots
94};
95
96#endif
#define e(i)
Definition: RSha256.hxx:103
static const double x2[5]
static const double x1[5]
int Int_t
Definition: RtypesCore.h:41
unsigned int UInt_t
Definition: RtypesCore.h:42
const Bool_t kFALSE
Definition: RtypesCore.h:88
bool Bool_t
Definition: RtypesCore.h:59
double Double_t
Definition: RtypesCore.h:55
const char Option_t
Definition: RtypesCore.h:62
#define ClassDef(name, id)
Definition: Rtypes.h:326
static void indent(ostringstream &buf, int indent_level)
char name[80]
Definition: TGX11.cxx:109
float type_of_call hi(const int &, const int &)
Abstract interface for evaluating a real-valued function of one real variable and performing numerica...
Definition: RooAbsFunc.h:23
RooAbsRealLValue is the common abstract base class for objects that represent a real value that may a...
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:59
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:28
A RooCurve is a one-dimensional graphical representation of a real-valued function.
Definition: RooCurve.h:32
void addPoints(const RooAbsFunc &func, Double_t xlo, Double_t xhi, Int_t minPoints, Double_t prec, Double_t resolution, WingMode wmode, Int_t numee=0, Bool_t doEEVal=kFALSE, Double_t eeVal=0., std::list< Double_t > *samplingHint=0)
Add points calculated with the specified function, over the range (xlo,xhi).
Definition: RooCurve.cxx:307
void initialize()
Perform initialization that is common to all curves.
Definition: RooCurve.cxx:257
void addPoint(Double_t x, Double_t y)
Add a point with the specified coordinates. Update our y-axis limits.
Definition: RooCurve.cxx:476
Double_t chiSquare(const RooHist &hist, int nFitParam) const
Calculate the chi^2/NDOF of this curve with respect to the histogram 'hist' accounting nFitParam floa...
Definition: RooCurve.cxx:564
Double_t average(Double_t lo, Double_t hi) const
Return average curve value in [xFirst,xLast] by integrating curve between points and dividing by xLas...
Definition: RooCurve.cxx:612
void addRange(const RooAbsFunc &func, Double_t x1, Double_t x2, Double_t y1, Double_t y2, Double_t minDy, Double_t minDx, Int_t numee=0, Bool_t doEEVal=kFALSE, Double_t eeVal=0.)
Fill the range (x1,x2) with points calculated using func(&x).
Definition: RooCurve.cxx:431
Bool_t _showProgress
Definition: RooCurve.h:91
void shiftCurveToZero(Double_t prevYMax)
Find lowest point in curve and move all points in curve so that lowest point will go exactly through ...
Definition: RooCurve.cxx:271
virtual ~RooCurve()
Destructor.
Definition: RooCurve.cxx:248
RooCurve * makeErrorBand(const std::vector< RooCurve * > &variations, Double_t Z=1) const
Construct filled RooCurve represented error band that captures alpha% of the variations of the curves...
Definition: RooCurve.cxx:745
virtual void printName(std::ostream &os) const
Print name of object.
Definition: RooCurve.cxx:516
@ Extended
Definition: RooCurve.h:35
@ NoWings
Definition: RooCurve.h:35
@ Straight
Definition: RooCurve.h:35
RooCurve()
Default constructor.
Definition: RooCurve.cxx:68
Bool_t isIdentical(const RooCurve &other, Double_t tol=1e-6) const
Return true if curve is identical to other curve allowing for given absolute tolerance on each point ...
Definition: RooCurve.cxx:893
Double_t getFitRangeNEvt() const
Return the number of events associated with the plotable object, it is always 1 for curves.
Definition: RooCurve.cxx:489
virtual void printClassName(std::ostream &os) const
Print the class name of this curve.
Definition: RooCurve.cxx:536
virtual void Print(Option_t *options=0) const
Print graph values.
Definition: RooCurve.h:59
virtual void printMultiline(std::ostream &os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const
Print the details of this curve.
Definition: RooCurve.cxx:546
Double_t interpolate(Double_t x, Double_t tolerance=1e-10) const
Return linearly interpolated value of curve at xvalue.
Definition: RooCurve.cxx:698
virtual void printTitle(std::ostream &os) const
Print the title of this curve.
Definition: RooCurve.cxx:527
Int_t findPoint(Double_t value, Double_t tolerance=1e-10) const
Find the nearest point to xvalue.
Definition: RooCurve.cxx:676
Double_t getFitRangeBinW() const
Get the bin width associated with this plotable object.
Definition: RooCurve.cxx:508
void calcBandInterval(const std::vector< RooCurve * > &variations, Int_t i, Double_t Z, Double_t &lo, Double_t &hi, Bool_t approxGauss) const
Definition: RooCurve.cxx:855
A RooHist is a graphical representation of binned data based on the TGraphAsymmErrors class.
Definition: RooHist.h:27
Class RooPotable is a base class for objects that can be inserted into RooPlots and take advantage of...
Definition: RooPlotable.h:26
virtual StyleOption defaultPrintStyle(Option_t *opt) const
virtual Int_t defaultPrintContents(Option_t *opt) const
Default choice of contents to be printed (name and value)
static std::ostream & defaultPrintStream(std::ostream *os=0)
Return a reference to the current default stream to use in Print().
virtual void printStream(std::ostream &os, Int_t contents, StyleOption style, TString indent="") const
Print description of object on ostream, printing contents set by contents integer,...
RooRealVar represents a variable that can be changed from the outside.
Definition: RooRealVar.h:35
A Graph is a graphics object made of two arrays X and Y with npoints each.
Definition: TGraph.h:41
Basic string class.
Definition: TString.h:131
return c1
Definition: legend1.C:41
Double_t y[n]
Definition: legend1.C:17
Double_t x[n]
Definition: legend1.C:17
return c2
Definition: legend2.C:14