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Reference Guide
HypoTestPlot.cxx
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1 // @(#)root/roostats:$Id$
2 // Author: Sven Kreiss June 2010
3 /*************************************************************************
4  * Copyright (C) 1995-2008, Rene Brun and Fons Rademakers. *
5  * All rights reserved. *
6  * *
7  * For the licensing terms see $ROOTSYS/LICENSE. *
8  * For the list of contributors see $ROOTSYS/README/CREDITS. *
9  *************************************************************************/
10 
11 /** \class RooStats::HypoTestPlot
12  \ingroup Roostats
13 
14 This class provides the plots for the result of a study performed with any of the
15 HypoTestCalculatorGeneric (e.g. HybridCalculator or FrequentistCalculator) class.
16 
17  */
18 
19 #include "RooStats/HypoTestPlot.h"
22 
23 #include "TStyle.h"
24 
26 
27 using namespace RooStats;
28 using namespace std;
29 
30 ////////////////////////////////////////////////////////////////////////////////
31 
33  SamplingDistPlot(bins),
34  fHypoTestResult(&result)
35 {
36  ApplyResult(result, opt);
37 }
39  SamplingDistPlot(bins,min,max),
40  fHypoTestResult(&result)
41 {
42  ApplyResult(result, opt);
43 }
44 
45 ////////////////////////////////////////////////////////////////////////////////
46 
48  fLegend = new TLegend(0.55,0.95-0.3*0.66,0.95,0.95);
49 
50  const SamplingDistribution *alt = result.GetAltDistribution();
52  if(!result.HasTestStatisticData()) {
53  if(alt) AddSamplingDistribution(alt, opt);
54  if(null) AddSamplingDistribution(null, opt);
55  }else{
56  if(result.GetPValueIsRightTail()) {
59  }else{
62  }
63  }
64 
65  if(result.HasTestStatisticData()) {
66  Double_t theMin(0.), theMax(0.), theYMax(0.);
67  GetAbsoluteInterval(theMin, theMax, theYMax);
68 
69  AddLine(result.GetTestStatisticData(), 0, result.GetTestStatisticData(), theYMax*0.66, "test statistic data");
70  }
71 
73 }
74 
75 ////////////////////////////////////////////////////////////////////////////////
76 
78  if(!fHypoTestResult) return;
79 
82 
83  if(alt) {
84  SetLineWidth(2, alt);
85  SetLineColor(kBlue, alt);
86  }
87  if(null) {
88  SetLineWidth(2, null);
89  SetLineColor(kRed, null);
90  }
91 }
Bool_t HasTestStatisticData(void) const
HypoTestPlot()
Constructor.
Definition: HypoTestPlot.h:25
This class displays a legend box (TPaveText) containing several legend entries.
Definition: TLegend.h:23
void SetLineColor(Color_t color, const SamplingDistribution *samplDist=0)
Sets line color for given sampling distribution and fill color for the associated shaded TH1F...
const char Option_t
Definition: RtypesCore.h:62
void ApplyResult(HypoTestResult &result, Option_t *opt="NORMALIZE HIST")
Applies a HypoTestResult.
Definition: Rtypes.h:59
HypoTestResult is a base class for results from hypothesis tests.
Double_t AddSamplingDistribution(const SamplingDistribution *samplingDist, Option_t *drawOptions="NORMALIZE HIST")
adds the sampling distribution and returns the scale factor
This class provides the plots for the result of a study performed with any of the HypoTestCalculatorG...
Definition: HypoTestPlot.h:22
int Int_t
Definition: RtypesCore.h:41
SamplingDistribution * GetAltDistribution(void) const
STL namespace.
void GetAbsoluteInterval(Double_t &theMin, Double_t &theMax, Double_t &theYMax) const
null_t< F > null()
Bool_t GetPValueIsRightTail(void) const
void SetLineWidth(Width_t lwidth, const SamplingDistribution *samplDist=0)
void ApplyDefaultStyle(void)
Set default style options (also called in the constructor that takes a HypoTestResult).
Double_t AddSamplingDistributionShaded(const SamplingDistribution *samplingDist, Double_t minShaded, Double_t maxShaded, Option_t *drawOptions="NORMALIZE HIST")
Like AddSamplingDistribution, but also sets a shaded area in the minShaded and maxShaded boundaries...
HypoTestResult * fHypoTestResult
Definition: HypoTestPlot.h:36
Double_t GetTestStatisticData(void) const
static Double_t infinity()
Return internal infinity representation.
Definition: RooNumber.cxx:49
SamplingDistribution * GetNullDistribution(void) const
This class simply holds a sampling distribution of some test statistic.
Namespace for the RooStats classes.
Definition: Asimov.h:20
#define ClassImp(name)
Definition: Rtypes.h:359
double Double_t
Definition: RtypesCore.h:55
void AddLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2, const char *title=NULL)
add a line
This class provides simple and straightforward utilities to plot SamplingDistribution objects...
Definition: Rtypes.h:59