The interface to the Minuit fitter. More...

#include <LauMinuit.hh>

Inheritance diagram for LauMinuit:

Public Member Functions
virtual	~LauMinuit ()
	Destructor. More...

virtual void	initialise (LauFitObject fitObj, const std::vector< LauParameter > &parameters)
	Initialise the fitter, setting the information on the parameters. More...

virtual LauFitObject *	getFitObject ()
	Get the object that controls the calculation of the likelihood. More...

virtual UInt_t	nParameters () const
	Get the total number of fit parameters. More...

virtual UInt_t	nFreeParameters () const
	Get the number of floating fit parameters. More...

virtual Bool_t	twoStageFit () const
	Determine whether the two-stage fit is enabled. More...

virtual void	twoStageFit (Bool_t doTwoStageFit)
	Turn on or off the two stage fit. More...

virtual Bool_t	useAsymmFitErrors () const
	Determine whether calculation of asymmetric errors is enabled. More...

virtual void	useAsymmFitErrors (Bool_t useAsymmErrors)
	Turn on or off the computation of asymmetric errors (i.e. the MINOS routine) More...

virtual std::pair< Int_t, Double_t >	minimise ()
	Perform the minimisation of the fit function. More...

virtual void	fixFirstStageParameters ()
	Fix parameters marked as "first stage". More...

virtual void	releaseFirstStageParameters ()
	Release parameters marked as "first stage". More...

virtual void	fixSecondStageParameters ()
	Fix parameters marked as "second stage". More...

virtual void	releaseSecondStageParameters ()
	Release parameters marked as "second stage". More...

virtual void	updateParameters ()
	Update the values and errors of the parameters based on the fit minimum. More...

virtual const TMatrixD &	covarianceMatrix () const
	Retrieve the fit covariance matrix. More...

Public Member Functions inherited from LauAbsFitter
virtual	~LauAbsFitter ()
	Destructor. More...

Private Member Functions
	LauMinuit (Int_t maxPar=100)
	Constructor. More...

	LauMinuit (const LauMinuit &)
	Copy constructor - private and not implemented. More...

LauMinuit &	operator= (const LauMinuit &rhs)
	Copy assignment operator - private and not implemented. More...

	ClassDef (LauMinuit, 0)

Private Attributes
TVirtualFitter *	minuit_
	The interface to Minuit. More...

const UInt_t	maxPar_
	The maximum number of parameters. More...

std::vector< LauParameter * >	params_
	The fit parameters. More...

UInt_t	nParams_
	The total number of parameters. More...

UInt_t	nFreeParams_
	The number of free parameters. More...

Bool_t	twoStageFit_
	Option to perform a two stage fit. More...

Bool_t	useAsymmFitErrors_
	Option to use asymmetric errors. More...

Int_t	fitStatus_
	The status of the fit. More...

Double_t	NLL_
	The negative log-likelihood. More...

TMatrixD	covMatrix_
	The covariance matrix. More...

Friends
class	LauFitter
	Allow the factory class to access private methods. More...

Additional Inherited Members
Protected Member Functions inherited from LauAbsFitter
	LauAbsFitter ()
	Constructor. More...

Detailed Description

The interface to the Minuit fitter.

The singleton interface to the Minuit fitter.

Definition at line 36 of file LauMinuit.hh.

Constructor & Destructor Documentation

LauMinuit::~LauMinuit ( )

virtual

Destructor.

Definition at line 50 of file LauMinuit.cc.

LauMinuit::LauMinuit ( Int_t maxPar = 100 )

explicitprivate

Constructor.

Definition at line 36 of file LauMinuit.cc.

LauMinuit::LauMinuit ( const LauMinuit & )

private

Copy constructor - private and not implemented.

Member Function Documentation

LauMinuit::ClassDef	(	LauMinuit	,
		0
	)

private

virtual const TMatrixD& LauMinuit::covarianceMatrix ( ) const

inlinevirtual

Retrieve the fit covariance matrix.

Implements LauAbsFitter.

Definition at line 105 of file LauMinuit.hh.

void LauMinuit::fixFirstStageParameters ( )

virtual

Fix parameters marked as "first stage".

Implements LauAbsFitter.

Definition at line 212 of file LauMinuit.cc.

void LauMinuit::fixSecondStageParameters ( )

virtual

Fix parameters marked as "second stage".

Implements LauAbsFitter.

Definition at line 238 of file LauMinuit.cc.

LauFitObject * LauMinuit::getFitObject ( )

virtual

Get the object that controls the calculation of the likelihood.

Implements LauAbsFitter.

Definition at line 124 of file LauMinuit.cc.

void LauMinuit::initialise	(	LauFitObject *	fitObj,
		const std::vector< LauParameter * > &	parameters
	)

virtual

Initialise the fitter, setting the information on the parameters.

Parameters

[in]	fitObj	the object that controls the likelihood calculation
[in]	parameters	the list of parameters of the fit

Implements LauAbsFitter.

Definition at line 54 of file LauMinuit.cc.

std::pair< Int_t, Double_t > LauMinuit::minimise ( )

virtual

Perform the minimisation of the fit function.

Returns: the status code of the fit and the minimised value

Implements LauAbsFitter.

Definition at line 129 of file LauMinuit.cc.

virtual UInt_t LauMinuit::nFreeParameters ( ) const

inlinevirtual

Get the number of floating fit parameters.

Implements LauAbsFitter.

Definition at line 56 of file LauMinuit.hh.

virtual UInt_t LauMinuit::nParameters ( ) const

inlinevirtual

Get the total number of fit parameters.

Implements LauAbsFitter.

Definition at line 53 of file LauMinuit.hh.

LauMinuit& LauMinuit::operator= ( const LauMinuit & rhs )

private

Copy assignment operator - private and not implemented.

void LauMinuit::releaseFirstStageParameters ( )

virtual

Release parameters marked as "first stage".

Implements LauAbsFitter.

Definition at line 225 of file LauMinuit.cc.

void LauMinuit::releaseSecondStageParameters ( )

virtual

Release parameters marked as "second stage".

Implements LauAbsFitter.

Definition at line 251 of file LauMinuit.cc.

virtual Bool_t LauMinuit::twoStageFit ( ) const

inlinevirtual

Determine whether the two-stage fit is enabled.

Implements LauAbsFitter.

Definition at line 59 of file LauMinuit.hh.

virtual void LauMinuit::twoStageFit ( Bool_t doTwoStageFit )

inlinevirtual

Turn on or off the two stage fit.

The two-stage fit allows certain parameters to be fixed in one stage and floated in another stage of the fit. Can be used, for example, in a CP fit where the CP-parameters are fixed to zero in the first stage (while the CP-average parameters are determined), then floated in the second.

Parameters

[in] doTwoStageFit boolean specifying whether or not the two-stage fit should be enabled

Implements LauAbsFitter.

Definition at line 72 of file LauMinuit.hh.

void LauMinuit::updateParameters ( )

virtual

Update the values and errors of the parameters based on the fit minimum.

Implements LauAbsFitter.

Definition at line 264 of file LauMinuit.cc.

virtual Bool_t LauMinuit::useAsymmFitErrors ( ) const

inlinevirtual

Determine whether calculation of asymmetric errors is enabled.

Implements LauAbsFitter.

Definition at line 75 of file LauMinuit.hh.

virtual void LauMinuit::useAsymmFitErrors ( Bool_t useAsymmErrors )

inlinevirtual

Turn on or off the computation of asymmetric errors (i.e. the MINOS routine)

Parameters

[in] useAsymmErrors boolean specifying whether or not the computation of asymmetric errors is enabled

Implements LauAbsFitter.

Definition at line 81 of file LauMinuit.hh.

Friends And Related Function Documentation

friend class LauFitter

friend

Allow the factory class to access private methods.

Definition at line 110 of file LauMinuit.hh.

Member Data Documentation

TMatrixD LauMinuit::covMatrix_

private

The covariance matrix.

Definition at line 149 of file LauMinuit.hh.

Int_t LauMinuit::fitStatus_

private

The status of the fit.

Definition at line 143 of file LauMinuit.hh.

const UInt_t LauMinuit::maxPar_

private

The maximum number of parameters.

Definition at line 125 of file LauMinuit.hh.

TVirtualFitter* LauMinuit::minuit_

private

The interface to Minuit.

Definition at line 122 of file LauMinuit.hh.

UInt_t LauMinuit::nFreeParams_

private

The number of free parameters.

Definition at line 134 of file LauMinuit.hh.

Double_t LauMinuit::NLL_

private

The negative log-likelihood.

Definition at line 146 of file LauMinuit.hh.

UInt_t LauMinuit::nParams_

private

The total number of parameters.

Definition at line 131 of file LauMinuit.hh.

std::vector<LauParameter*> LauMinuit::params_

private

The fit parameters.

Definition at line 128 of file LauMinuit.hh.

Bool_t LauMinuit::twoStageFit_

private

Option to perform a two stage fit.

Definition at line 137 of file LauMinuit.hh.

Bool_t LauMinuit::useAsymmFitErrors_

private

Option to use asymmetric errors.

Definition at line 140 of file LauMinuit.hh.

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

inc/LauMinuit.hh
src/LauMinuit.cc

Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation