RooStats::SimpleLikelihoodRatioTestStat Class Reference

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.
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.
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
virtual void	SetGlobalObservables (const RooArgSet &set)
	interface to set global observables. If a test statistics needs them it will re-implement this function
void	SetNullParameters (const RooArgSet &nullParameters)
void	SetReuseNLL (Bool_t flag)
Public Member Functions inherited from RooStats::TestStatistic
virtual	~TestStatistic ()
virtual bool	PValueIsRightTail (void) const
	Defines the sign convention of the test statistic. Overwrite function if necessary.

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
RooAbsReal *	fNllNull
RooArgSet *	fNullParameters
RooAbsPdf *	fNullPdf
Bool_t	fReuseNll

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

#include <RooStats/SimpleLikelihoodRatioTestStat.h>

Inheritance diagram for RooStats::SimpleLikelihoodRatioTestStat:

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  )

inline

Definition at line 71 of file SimpleLikelihoodRatioTestStat.h.

~SimpleLikelihoodRatioTestStat()

virtual RooStats::SimpleLikelihoodRatioTestStat::~SimpleLikelihoodRatioTestStat ( )

inlinevirtual

Definition at line 96 of file SimpleLikelihoodRatioTestStat.h.

Member Function Documentation

EnableDetailedOutput()

virtual void RooStats::SimpleLikelihoodRatioTestStat::EnableDetailedOutput ( bool  e = true )

inlinevirtual

Definition at line 155 of file SimpleLikelihoodRatioTestStat.h.

Evaluate()

Double_t RooStats::SimpleLikelihoodRatioTestStat::Evaluate ( RooAbsData &  data, RooArgSet &  nullPOI  )

virtual

Main interface to evaluate the test statistic on a dataset given the values for the Null Parameters Of Interest.

Implements RooStats::TestStatistic.

Definition at line 30 of file SimpleLikelihoodRatioTestStat.cxx.

GetDetailedOutput()

virtual const RooArgSet * RooStats::SimpleLikelihoodRatioTestStat::GetDetailedOutput ( void  ) const

inlinevirtual

return detailed output: for fits this can be pulls, processing time, ... The returned pointer will not loose validity until another call to Evaluate.

Reimplemented from RooStats::TestStatistic.

Definition at line 156 of file SimpleLikelihoodRatioTestStat.h.

GetVarName()

virtual const TString RooStats::SimpleLikelihoodRatioTestStat::GetVarName ( ) const

inlinevirtual

Implements RooStats::TestStatistic.

Definition at line 158 of file SimpleLikelihoodRatioTestStat.h.

ParamsAreEqual()

bool RooStats::SimpleLikelihoodRatioTestStat::ParamsAreEqual ( )

inline

Definition at line 125 of file SimpleLikelihoodRatioTestStat.h.

SetAltParameters()

void RooStats::SimpleLikelihoodRatioTestStat::SetAltParameters ( const RooArgSet &  altParameters )

inline

Definition at line 117 of file SimpleLikelihoodRatioTestStat.h.

SetAlwaysReuseNLL()

void RooStats::SimpleLikelihoodRatioTestStat::SetAlwaysReuseNLL ( Bool_t  flag )

static

Definition at line 28 of file SimpleLikelihoodRatioTestStat.cxx.

SetConditionalObservables()

virtual void RooStats::SimpleLikelihoodRatioTestStat::SetConditionalObservables ( const RooArgSet &  )

inlinevirtual

interface to set conditional observables. If a test statistics needs them it will re-implement this function

Reimplemented from RooStats::TestStatistic.

Definition at line 146 of file SimpleLikelihoodRatioTestStat.h.

SetGlobalObservables()

virtual void RooStats::SimpleLikelihoodRatioTestStat::SetGlobalObservables ( const RooArgSet &  )

inlinevirtual

interface to set global observables. If a test statistics needs them it will re-implement this function

Reimplemented from RooStats::TestStatistic.

Definition at line 150 of file SimpleLikelihoodRatioTestStat.h.

SetNullParameters()

void RooStats::SimpleLikelihoodRatioTestStat::SetNullParameters ( const RooArgSet &  nullParameters )

inline

Definition at line 109 of file SimpleLikelihoodRatioTestStat.h.

SetReuseNLL()

void RooStats::SimpleLikelihoodRatioTestStat::SetReuseNLL ( Bool_t  flag )

inline

Definition at line 106 of file SimpleLikelihoodRatioTestStat.h.

Member Data Documentation

fAltParameters

RooArgSet* RooStats::SimpleLikelihoodRatioTestStat::fAltParameters

private

Definition at line 167 of file SimpleLikelihoodRatioTestStat.h.

fAltPdf

RooAbsPdf* RooStats::SimpleLikelihoodRatioTestStat::fAltPdf

private

Definition at line 165 of file SimpleLikelihoodRatioTestStat.h.

fConditionalObs

RooArgSet RooStats::SimpleLikelihoodRatioTestStat::fConditionalObs

private

Definition at line 168 of file SimpleLikelihoodRatioTestStat.h.

fDetailedOutput

RooArgSet* RooStats::SimpleLikelihoodRatioTestStat::fDetailedOutput

private

Definition at line 173 of file SimpleLikelihoodRatioTestStat.h.

fDetailedOutputEnabled

bool RooStats::SimpleLikelihoodRatioTestStat::fDetailedOutputEnabled

private

Definition at line 172 of file SimpleLikelihoodRatioTestStat.h.

fFirstEval

bool RooStats::SimpleLikelihoodRatioTestStat::fFirstEval

private

Definition at line 170 of file SimpleLikelihoodRatioTestStat.h.

fgAlwaysReuseNll

Bool_t RooStats::SimpleLikelihoodRatioTestStat::fgAlwaysReuseNll = kTRUE

staticprivate

transient copy of the alt NLL

Definition at line 177 of file SimpleLikelihoodRatioTestStat.h.

fGlobalObs

RooArgSet RooStats::SimpleLikelihoodRatioTestStat::fGlobalObs

private

Definition at line 169 of file SimpleLikelihoodRatioTestStat.h.

fNllAlt

RooAbsReal* RooStats::SimpleLikelihoodRatioTestStat::fNllAlt

private

transient copy of the null NLL

Definition at line 176 of file SimpleLikelihoodRatioTestStat.h.

fNllNull

RooAbsReal* RooStats::SimpleLikelihoodRatioTestStat::fNllNull

private

Definition at line 175 of file SimpleLikelihoodRatioTestStat.h.

fNullParameters

RooArgSet* RooStats::SimpleLikelihoodRatioTestStat::fNullParameters

private

Definition at line 166 of file SimpleLikelihoodRatioTestStat.h.

fNullPdf

RooAbsPdf* RooStats::SimpleLikelihoodRatioTestStat::fNullPdf

private

Definition at line 164 of file SimpleLikelihoodRatioTestStat.h.

fReuseNll

Bool_t RooStats::SimpleLikelihoodRatioTestStat::fReuseNll

private

Definition at line 178 of file SimpleLikelihoodRatioTestStat.h.

Libraries for RooStats::SimpleLikelihoodRatioTestStat:

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The documentation for this class was generated from the following files:

• roofit/roostats/inc/RooStats/SimpleLikelihoodRatioTestStat.h
• roofit/roostats/src/SimpleLikelihoodRatioTestStat.cxx