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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 
25 class RooAbsReal;
26 class RooRealVar;
27 class RooAbsFunc;
28 class RooArgSet;
29 class RooAbsRealLValue ;
30 class RooHist ;
31 
32 class RooCurve : public TGraph, public RooPlotable {
33 public:
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 
47  void addPoint(Double_t x, Double_t y);
48 
49  Double_t getFitRangeBinW() const;
50  Double_t getFitRangeNEvt(Double_t xlo, Double_t xhi) const ;
51  Double_t getFitRangeNEvt() const;
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 ;
66  Double_t average(Double_t lo, Double_t hi) 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 
74 protected:
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
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
virtual void printTitle(std::ostream &os) const
Print the title of this curve.
Definition: RooCurve.cxx:527
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, which is interpreted as an OR of &#39;enum ContentsOptions&#39; values and in the style given by &#39;enum StyleOption&#39;.
A RooCurve is a one-dimensional graphical representation of a real-valued function.
Definition: RooCurve.h:32
Int_t findPoint(Double_t value, Double_t tolerance=1e-10) const
Find the nearest point to xvalue.
Definition: RooCurve.cxx:676
const char Option_t
Definition: RtypesCore.h:62
return c1
Definition: legend1.C:41
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition: RooArgSet.h:28
Class RooPotable is a base class for objects that can be inserted into RooPlots and take advantage of...
Definition: RooPlotable.h:26
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
Basic string class.
Definition: TString.h:131
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
virtual ~RooCurve()
Destructor.
Definition: RooCurve.cxx:248
virtual void printName(std::ostream &os) const
Print name of object.
Definition: RooCurve.cxx:516
Double_t chiSquare(const RooHist &hist, int nFitParam) const
Calculate the chi^2/NDOF of this curve with respect to the histogram &#39;hist&#39; accounting nFitParam floa...
Definition: RooCurve.cxx:564
static const double x2[5]
A RooHist is a graphical representation of binned data based on the TGraphAsymmErrors class...
Definition: RooHist.h:27
Double_t x[n]
Definition: legend1.C:17
#define ClassDef(name, id)
Definition: Rtypes.h:326
RooCurve()
Default constructor.
Definition: RooCurve.cxx:68
void initialize()
Perform initialization that is common to all curves.
Definition: RooCurve.cxx:257
Double_t getFitRangeNEvt() const
Return the number of events associated with the plotable object, it is always 1 for curves...
Definition: RooCurve.cxx:489
RooRealVar represents a fundamental (non-derived) real-valued object.
Definition: RooRealVar.h:36
virtual void printClassName(std::ostream &os) const
Print the class name of this curve.
Definition: RooCurve.cxx:536
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
unsigned int UInt_t
Definition: RtypesCore.h:42
virtual Int_t defaultPrintContents(Option_t *opt) const
Default choice of contents to be printed (name and value)
static void indent(ostringstream &buf, int indent_level)
const Bool_t kFALSE
Definition: RtypesCore.h:88
void addPoint(Double_t x, Double_t y)
Add a point with the specified coordinates. Update our y-axis limits.
Definition: RooCurve.cxx:476
static std::ostream & defaultPrintStream(std::ostream *os=0)
Return a reference to the current default stream to use in Print().
return c2
Definition: legend2.C:14
static const double x1[5]
double Double_t
Definition: RtypesCore.h:55
RooAbsReal is the common abstract base class for objects that represent a real value and implements f...
Definition: RooAbsReal.h:59
Double_t y[n]
Definition: legend1.C:17
virtual StyleOption defaultPrintStyle(Option_t *opt) const
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
you should not use this method at all Int_t Int_t Double_t Double_t Double_t e
Definition: TRolke.cxx:630
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
RooAbsRealLValue is the common abstract base class for objects that represent a real value that may a...
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
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
A TGraph is an object made of two arrays X and Y with npoints each.
Definition: TGraph.h:41
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
Bool_t _showProgress
Definition: RooCurve.h:91
virtual void Print(Option_t *options=0) const
Print graph values.
Definition: RooCurve.h:59
Double_t getFitRangeBinW() const
Get the bin width associated with this plotable object.
Definition: RooCurve.cxx:508
char name[80]
Definition: TGX11.cxx:109
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