class TMVA::ROCCalc

Function Members (Methods)

public:

	~ROCCalc()
void	ApplySignalAndBackgroundStyle(TH1* sig, TH1* bkg, TH1* any = 0)
Double_t	GetEffSForEffBof(Double_t effBref, Double_t& effSerr)
TH1*	GetMvaBpdf()
TH1*	GetMvaSpdf()
TH1*	GetPurity(Int_t nStot, Int_t nBtot)
TH1D*	GetROC()
Double_t	GetROCIntegral()
Double_t	GetSignalReferenceCut()
TH1*	GetSignificance(Int_t nStot, Int_t nBtot)
TMVA::ROCCalc&	operator=(const TMVA::ROCCalc&)
TMVA::ROCCalc	ROCCalc(const TMVA::ROCCalc&)
TMVA::ROCCalc	ROCCalc(TH1* mvaS, TH1* mvaB)

private:

Double_t	GetEffForRoot(Double_t theCut)
TMVA::MsgLogger&	Log() const
Double_t	Root(Double_t)

Data Members

private:

Double_t	fAbsTol	absolute tolerance deviation
Int_t	fCutOrientation	+1 if larger mva value means more signal like, -1 otherwise
TMVA::MsgLogger*	fLogger	! message logger
Int_t	fMaxIter	maximum number of iterations
UInt_t	fNbins
Double_t	fNevtS	number of signal events (used in error calculation)
TH1*	fPurity
Double_t	fSignalCut	MVA cut value for last demanded background rejection or signal efficiency
TH1*	fSignificance
TSpline*	fSplB
TSpline*	fSplS
TSpline*	fSpleffBvsS
TSpline*	fSplmvaCumB	spline of cumulated mva distributions
TSpline*	fSplmvaCumS	spline of cumulated mva distributions
Bool_t	fUseSplines
Float_t	fXmax	min and max of the mva distribution
Float_t	fXmin	min and max of the mva distribution
TH1*	fmvaB	the input mva distributions
TH1*	fmvaBcumul
TH1*	fmvaBpdf	the normalized (and rebinned) input mva distributions
TH1*	fmvaS	the input mva distributions
TH1*	fmvaScumul
TH1*	fmvaSpdf	the normalized (and rebinned) input mva distributions
Int_t	fnBtot
Int_t	fnStot

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

ROCCalc(TH1* mvaS, TH1* mvaB)

void ApplySignalAndBackgroundStyle(TH1* sig, TH1* bkg, TH1* any = 0)

  Int_t c_Canvas         = TColor::GetColor( "#f0f0f0" );
  Int_t c_FrameFill      = TColor::GetColor( "#fffffd" );
  Int_t c_TitleBox       = TColor::GetColor( "#5D6B7D" );
  Int_t c_TitleBorder    = TColor::GetColor( "#7D8B9D" );
  Int_t c_TitleText      = TColor::GetColor( "#FFFFFF" );

~ROCCalc()

 destructor

TH1D* GetROC()

 get the ROC curve

Double_t GetROCIntegral()

 code to compute the area under the ROC ( rej-vs-eff ) curve

Double_t GetEffSForEffBof(Double_t effBref, Double_t& effSerr)

 get the signal efficiency for a particular backgroud efficiency
 that will be the value of the efficiency retured (does not affect
 the efficiency-vs-bkg plot which is done anyway.

Double_t GetEffForRoot(Double_t theCut)

 returns efficiency as function of cut

Double_t Root(Double_t )

 Root finding using Brents algorithm; taken from CERNLIB function RZERO

TH1* GetPurity(Int_t nStot, Int_t nBtot)

TH1* GetSignificance(Int_t nStot, Int_t nBtot)

ROCCalc(TH1* mvaS, TH1* mvaB)

Double_t GetSignalReferenceCut()

 return the cut value

{return fSignalCut;}

TH1* GetMvaSpdf()

{return fmvaSpdf;}

TH1* GetMvaBpdf()

{return fmvaBpdf;}