TestStatistic class that returns -log(L[null] / L[alt]) where L is the likelihood.

It is often called as the LEP Test statistic.

Definition at line 24 of file SimpleLikelihoodRatioTestStat.h.

Public Member Functions
	SimpleLikelihoodRatioTestStat ()

	SimpleLikelihoodRatioTestStat (RooAbsPdf &nullPdf, RooAbsPdf &altPdf)

	SimpleLikelihoodRatioTestStat (RooAbsPdf &nullPdf, RooAbsPdf &altPdf, const RooArgSet &nullParameters, const RooArgSet &altParameters)

virtual	~SimpleLikelihoodRatioTestStat ()

virtual void	EnableDetailedOutput (bool e=true)

virtual Double_t	Evaluate (RooAbsData &data, RooArgSet &nullPOI)
	Main interface to evaluate the test statistic on a dataset given the values for the Null Parameters Of Interest. More...

virtual const RooArgSet *	GetDetailedOutput (void) const
	return detailed output: for fits this can be pulls, processing time, ... The returned pointer will not loose validity until another call to Evaluate. More...

virtual const TString	GetVarName () const

bool	ParamsAreEqual ()

void	SetAltParameters (const RooArgSet &altParameters)

virtual void	SetConditionalObservables (const RooArgSet &set)
	interface to set conditional observables. If a test statistics needs them it will re-implement this function More...

virtual void	SetGlobalObservables (const RooArgSet &set)
	interface to set global observables. If a test statistics needs them it will re-implement this function More...

void	SetNullParameters (const RooArgSet &nullParameters)

void	SetReuseNLL (Bool_t flag)

Public Member Functions inherited from RooStats::TestStatistic
virtual	~TestStatistic ()

virtual Double_t	Evaluate (RooAbsData &data, RooArgSet &nullPOI)=0
	Main interface to evaluate the test statistic on a dataset given the values for the Null Parameters Of Interest. More...

virtual const RooArgSet *	GetDetailedOutput () const
	return detailed output: for fits this can be pulls, processing time, ... The returned pointer will not loose validity until another call to Evaluate. More...

virtual const TString	GetVarName () const =0

virtual bool	PValueIsRightTail (void) const
	Defines the sign convention of the test statistic. Overwrite function if necessary. More...

virtual void	SetConditionalObservables (const RooArgSet &)
	interface to set conditional observables. If a test statistics needs them it will re-implement this function More...

virtual void	SetGlobalObservables (const RooArgSet &)
	interface to set global observables. If a test statistics needs them it will re-implement this function More...

Static Public Member Functions
static void	SetAlwaysReuseNLL (Bool_t flag)

Private Attributes
RooArgSet *	fAltParameters

RooAbsPdf *	fAltPdf

RooArgSet	fConditionalObs

RooArgSet *	fDetailedOutput

bool	fDetailedOutputEnabled

bool	fFirstEval

RooArgSet	fGlobalObs

RooAbsReal *	fNllAlt
	transient copy of the null NLL More...

RooAbsReal *	fNllNull

RooArgSet *	fNullParameters

RooAbsPdf *	fNullPdf

Bool_t	fReuseNll

Static Private Attributes
static Bool_t	fgAlwaysReuseNll = kTRUE
	transient copy of the alt NLL More...

#include <RooStats/SimpleLikelihoodRatioTestStat.h>

Inheritance diagram for RooStats::SimpleLikelihoodRatioTestStat:

[legend]

Constructor & Destructor Documentation

◆ SimpleLikelihoodRatioTestStat() [1/3]

RooStats::SimpleLikelihoodRatioTestStat::SimpleLikelihoodRatioTestStat ( )

inline

Definition at line 29 of file SimpleLikelihoodRatioTestStat.h.

◆ SimpleLikelihoodRatioTestStat() [2/3]

RooStats::SimpleLikelihoodRatioTestStat::SimpleLikelihoodRatioTestStat	(	RooAbsPdf &	nullPdf,
		RooAbsPdf &	altPdf
	)

inline

Definition at line 44 of file SimpleLikelihoodRatioTestStat.h.

◆ SimpleLikelihoodRatioTestStat() [3/3]

RooStats::SimpleLikelihoodRatioTestStat::SimpleLikelihoodRatioTestStat	(	RooAbsPdf &	nullPdf,
		RooAbsPdf &	altPdf,
		const RooArgSet &	nullParameters,
		const RooArgSet &	altParameters
	)