Amplitude estimation action. More...

#include <TGo4FitAmplEstimation.h>

Inheritance diagram for TGo4FitAmplEstimation:

Public Member Functions
	TGo4FitAmplEstimation ()
	Default constructor.

	TGo4FitAmplEstimation (const char *Name, Int_t NumIters=1)
	Creates TGo4FitAmplEstimation action with given name.

virtual	~TGo4FitAmplEstimation ()
	Destroys TGo4FitAmplEstimation object.

void	DoAction (TGo4FitterAbstract *Fitter) override
	Perform amplitude estimations.

Int_t	GetNumIterations () const
	Returns number of iterations.

Bool_t	NeedBuffers () const override

void	Print (Option_t *option="") const override
	Print information on standard output.

void	SetNumIterations (Int_t iNumIters)
	Sets number of iterations.

Public Member Functions inherited from TGo4FitterAction
	TGo4FitterAction ()
	Default constructor.

	TGo4FitterAction (const char Name, const char Title, TNamed *Owner=nullptr)
	Creates TGo4FitterAction object with given name and title.

virtual	~TGo4FitterAction ()

virtual Bool_t	CanChangeFitter () const

Public Member Functions inherited from TGo4FitNamed
	TGo4FitNamed ()
	Default constructor.

	TGo4FitNamed (const char Name, const char Title, TNamed *Owner=nullptr)
	Creates TGo4FitNamed object and set name and title.

virtual	~TGo4FitNamed ()
	Destroy TGo4FitNamed object.

const char *	GetFullName ()
	Returns full name of object.

TNamed *	GetOwner ()
	Return owner of object.

const char *	GetOwnerFullName ()
	Return full name of owner.

void	Print (Option_t *option="") const override

void	SetOwner (TNamed *iOwner)
	Sets owner of object.

Private Member Functions
Bool_t	CalculateWithBuffers (TGo4Fitter *fitter)

Bool_t	CalculateWithIterators (TGo4Fitter *fitter)

Double_t	PointWeight (Int_t niter, Int_t FFtype, Double_t value, Double_t modelvalue, Double_t standdev)

Private Attributes
Int_t	fiNumIters {0}
	Number of iterations, used for amplitude estimation.

Detailed Description

Amplitude estimation action.

In additional to general minimization routine very useful amplitude estimation algorithm can be used. If rest of models parameters have good initial estimation, the amplitude parameter can be defined by solving of system of linear equations, as described in theoretical preface part of tutorial. This algorithm is provided by TGo4FitAmplEstimation class. This action can be added by AddAmplEstimation() routine of fitter. Typically, this action should be added before minimization routine.

Definition at line 26 of file TGo4FitAmplEstimation.h.

Constructor & Destructor Documentation

◆ TGo4FitAmplEstimation() [1/2]

TGo4FitAmplEstimation::TGo4FitAmplEstimation ( )

Default constructor.

Definition at line 29 of file TGo4FitAmplEstimation.cxx.

References TGo4FitterAction::TGo4FitterAction(), and fiNumIters.

◆ TGo4FitAmplEstimation() [2/2]

TGo4FitAmplEstimation::TGo4FitAmplEstimation	(	const char *	Name,
		Int_t	NumIters = 1 )

Creates TGo4FitAmplEstimation action with given name.

Optionally, default number of iterations can be sets up (default 1).

Definition at line 31 of file TGo4FitAmplEstimation.cxx.

References TGo4FitterAction::TGo4FitterAction(), and fiNumIters.

◆ ~TGo4FitAmplEstimation()

TGo4FitAmplEstimation::~TGo4FitAmplEstimation ( )

virtual

Destroys TGo4FitAmplEstimation object.

Definition at line 36 of file TGo4FitAmplEstimation.cxx.

Member Function Documentation

◆ CalculateWithBuffers()

Bool_t TGo4FitAmplEstimation::CalculateWithBuffers ( TGo4Fitter * fitter )

private

Definition at line 66 of file TGo4FitAmplEstimation.cxx.

References TGo4FitModel::AssignmentName(), TGo4Fitter::DataBuffersAllocated(), TGo4Fitter::ff_chi_Pearson, TGo4Fitter::ff_ML_Poisson, TGo4Fitter::FindData(), fiNumIters, TGo4FitComponent::GetAmplPar(), TGo4FitComponent::GetAmplValue(), TGo4Fitter::GetData(), TGo4Fitter::GetDataBinsDevs(), TGo4Fitter::GetDataBinsResult(), TGo4Fitter::GetDataBinsSize(), TGo4Fitter::GetDataBinsValues(), TGo4Fitter::GetDataName(), TGo4Fitter::GetFitFunctionType(), TGo4FitParameter::GetFixed(), TGo4Fitter::GetModel(), TGo4Fitter::GetModelBinsValues(), TGo4Fitter::GetNumData(), TGo4Fitter::GetNumModel(), TGo4FitterAbstract::IsInitialized(), TGo4Fitter::ModelBuffersAllocated(), TGo4FitModel::NumAssigments(), PointWeight(), TGo4Fitter::RebuildAll(), TGo4FitComponent::SetAmplError(), and TGo4FitComponent::SetAmplValue().

Referenced by DoAction().

◆ CalculateWithIterators()

Bool_t TGo4FitAmplEstimation::CalculateWithIterators ( TGo4Fitter * fitter )

private

◆ DoAction()

void TGo4FitAmplEstimation::DoAction ( TGo4FitterAbstract * Fitter )

overridevirtual

Perform amplitude estimations.

See Go4Fit tutorial to more details.

Implements TGo4FitterAction.

Definition at line 38 of file TGo4FitAmplEstimation.cxx.

References CalculateWithBuffers(), and CalculateWithIterators().

Referenced by TGo4Fitter::EstimateAmplitudes().

◆ GetNumIterations()

Int_t TGo4FitAmplEstimation::GetNumIterations ( ) const

inline

Returns number of iterations.

Definition at line 48 of file TGo4FitAmplEstimation.h.

References fiNumIters.

◆ NeedBuffers()

Bool_t TGo4FitAmplEstimation::NeedBuffers ( ) const

inlineoverridevirtual

Reimplemented from TGo4FitterAction.

Definition at line 55 of file TGo4FitAmplEstimation.h.

◆ PointWeight()

Double_t TGo4FitAmplEstimation::PointWeight	(	Int_t	niter,
		Int_t	FFtype,
		Double_t	value,
		Double_t	modelvalue,
		Double_t	standdev )

private

Definition at line 48 of file TGo4FitAmplEstimation.cxx.

References TGo4Fitter::ff_chi_gamma, TGo4Fitter::ff_chi_Neyman, TGo4Fitter::ff_chi_Pearson, TGo4Fitter::ff_chi_square, TGo4Fitter::ff_least_squares, TGo4Fitter::ff_ML_Poisson, and TGo4Fitter::ff_user.

Referenced by CalculateWithBuffers(), and CalculateWithIterators().

◆ Print()

void TGo4FitAmplEstimation::Print ( Option_t * option = "" ) const

override

Print information on standard output.

Definition at line 368 of file TGo4FitAmplEstimation.cxx.

References fiNumIters, and TGo4FitNamed::Print().

◆ SetNumIterations()

void TGo4FitAmplEstimation::SetNumIterations ( Int_t iNumIters )

inline

Sets number of iterations.

Definition at line 53 of file TGo4FitAmplEstimation.h.

References fiNumIters.

Referenced by QFitAmplEstimWidget::Iterations_valueChanged().

Field Documentation

◆ fiNumIters

Int_t TGo4FitAmplEstimation::fiNumIters {0}

private

Number of iterations, used for amplitude estimation.

Definition at line 77 of file TGo4FitAmplEstimation.h.

Referenced by TGo4FitAmplEstimation(), TGo4FitAmplEstimation(), CalculateWithBuffers(), CalculateWithIterators(), GetNumIterations(), Print(), and SetNumIterations().

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

Go4Fit/TGo4FitAmplEstimation.h
Go4Fit/TGo4FitAmplEstimation.cxx

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ TGo4FitAmplEstimation() [1/2]

◆ TGo4FitAmplEstimation() [2/2]

◆ ~TGo4FitAmplEstimation()

Member Function Documentation

◆ CalculateWithBuffers()

◆ CalculateWithIterators()

◆ DoAction()

◆ GetNumIterations()

◆ NeedBuffers()

◆ PointWeight()

◆ Print()

◆ SetNumIterations()

Field Documentation

◆ fiNumIters