RooStats::IntervalCalculator Class Reference

IntervalCalculator is an interface class for a tools which produce RooStats ConfIntervals.

The interface currently assumes that any interval calculator can be configured by specifying:

• a model,
• a data set,
• a set of parameters of interest,
• a set of nuisance parameters (eg. parameters on which the model depends, but are not of interest), and
• a confidence level or size of the test (eg. rate of Type I error).

The interface allows one to pass the model, data, and parameters via a workspace and then specify them with names. The interface will be extended so that one does not need to use a workspace.

After configuring the calculator, one only needs to ask GetInterval, which will return a ConfInterval pointer.

The concrete implementations of this interface should deal with the details of how the nuisance parameters are dealt with (eg. integration vs. profiling) and which test-statistic is used (perhaps this should be added to the interface).

The motivation for this interface is that we hope to be able to specify the problem in a common way for several concrete calculators.

Definition at line 55 of file IntervalCalculator.h.

Public Member Functions
virtual	~IntervalCalculator ()
virtual Double_t	ConfidenceLevel () const =0
	Get the Confidence level for the test.
virtual ConfInterval *	GetInterval () const =0
	Main interface to get a ConfInterval, pure virtual.
virtual void	SetConfidenceLevel (Double_t cl)=0
	set the confidence level for the interval (e.g. 0.95 for a 95% Confidence Interval)
virtual void	SetData (RooAbsData &)=0
	Set the DataSet ( add to the the workspace if not already there ?)
virtual void	SetModel (const ModelConfig &)=0
	Set the Model.
virtual void	SetTestSize (Double_t size)=0
	set the size of the test (rate of Type I error) ( e.g. 0.05 for a 95% Confidence Interval)
virtual Double_t	Size () const =0
	Get the size of the test (eg. rate of Type I error)

#include <RooStats/IntervalCalculator.h>

Inheritance diagram for RooStats::IntervalCalculator:

Constructor & Destructor Documentation

~IntervalCalculator()

virtual RooStats::IntervalCalculator::~IntervalCalculator ( )

inlinevirtual

Definition at line 59 of file IntervalCalculator.h.

Member Function Documentation

ConfidenceLevel()

virtual Double_t RooStats::IntervalCalculator::ConfidenceLevel ( ) const

pure virtual

Get the Confidence level for the test.

Implemented in RooStats::BayesianCalculator, RooStats::CombinedCalculator, RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::MCMCCalculator, and RooStats::NeymanConstruction.

GetInterval()

virtual ConfInterval * RooStats::IntervalCalculator::GetInterval ( ) const

pure virtual

Main interface to get a ConfInterval, pure virtual.

Implemented in RooStats::BayesianCalculator, RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::MCMCCalculator, RooStats::NeymanConstruction, RooStats::ProfileLikelihoodCalculator, and RooStats::CombinedCalculator.

SetConfidenceLevel()

virtual void RooStats::IntervalCalculator::SetConfidenceLevel ( Double_t  cl )

pure virtual

set the confidence level for the interval (e.g. 0.95 for a 95% Confidence Interval)

Implemented in RooStats::BayesianCalculator, RooStats::CombinedCalculator, RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::MCMCCalculator, and RooStats::NeymanConstruction.

SetData()

virtual void RooStats::IntervalCalculator::SetData ( RooAbsData &  )

pure virtual

Set the DataSet ( add to the the workspace if not already there ?)

Implemented in RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::BayesianCalculator, RooStats::CombinedCalculator, RooStats::MCMCCalculator, and RooStats::NeymanConstruction.

SetModel()

virtual void RooStats::IntervalCalculator::SetModel ( const ModelConfig &  )

pure virtual

Set the Model.

Implemented in RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::BayesianCalculator, RooStats::CombinedCalculator, RooStats::MCMCCalculator, and RooStats::NeymanConstruction.

SetTestSize()

virtual void RooStats::IntervalCalculator::SetTestSize ( Double_t  size )

pure virtual

set the size of the test (rate of Type I error) ( e.g. 0.05 for a 95% Confidence Interval)

Implemented in RooStats::BayesianCalculator, RooStats::CombinedCalculator, RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::MCMCCalculator, and RooStats::NeymanConstruction.

Size()

virtual Double_t RooStats::IntervalCalculator::Size ( ) const

pure virtual

Get the size of the test (eg. rate of Type I error)

Implemented in RooStats::BayesianCalculator, RooStats::CombinedCalculator, RooStats::FeldmanCousins, RooStats::HypoTestInverter, RooStats::HypoTestInverterOriginal, RooStats::MCMCCalculator, and RooStats::NeymanConstruction.

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

• roofit/roostats/inc/RooStats/IntervalCalculator.h