TGo4FitAmplEstimation Class Reference

Amplitude estimation action In additional to general minimization routine very useful amplitude estimation algorithm can be used. More...

#include <TGo4FitAmplEstimation.h>

Inheritance diagram for TGo4FitAmplEstimation:

List of all members.

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.
Int_t	GetNumIterations ()
	Returns number of iterations.
void	SetNumIterations (Int_t iNumIters)
	Sets number of iterations.
virtual Bool_t	NeedBuffers () const
virtual void	DoAction (TGo4FitterAbstract *Fitter)
	Perform amplitude estimations.
virtual void	Print (Option_t *option) const
	Print information on standard output.
Private Member Functions
Double_t	PointWeight (Int_t niter, Int_t FFtype, Double_t value, Double_t modelvalue, Double_t standdev)
Bool_t	CalculateWithBuffers (TGo4Fitter *fitter)
Bool_t	CalculateWithIterators (TGo4Fitter *fitter)
Private Attributes
Int_t	fiNumIters
	Number of iterations, used for amplitude estimation.

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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 25 of file TGo4FitAmplEstimation.h.

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Constructor & Destructor Documentation

TGo4FitAmplEstimation::TGo4FitAmplEstimation

(

)

Default constructor.

Definition at line 29 of file TGo4FitAmplEstimation.cxx.

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

Creates TGo4FitAmplEstimation action with given name.

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

Definition at line 32 of file TGo4FitAmplEstimation.cxx.

TGo4FitAmplEstimation::~TGo4FitAmplEstimation

(

)

[virtual]

Destroys TGo4FitAmplEstimation object.

Definition at line 36 of file TGo4FitAmplEstimation.cxx.

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Member Function Documentation

Int_t TGo4FitAmplEstimation::GetNumIterations

(

)

[inline]

Returns number of iterations.

Definition at line 47 of file TGo4FitAmplEstimation.h.

References fiNumIters.

void TGo4FitAmplEstimation::SetNumIterations

(

Int_t

iNumIters

)

[inline]

Sets number of iterations.

Definition at line 52 of file TGo4FitAmplEstimation.h.

References fiNumIters.

virtual Bool_t TGo4FitAmplEstimation::NeedBuffers

(

)

const [inline, virtual]

Reimplemented from TGo4FitterAction.

Definition at line 54 of file TGo4FitAmplEstimation.h.

void TGo4FitAmplEstimation::DoAction

(

TGo4FitterAbstract *

Fitter

)

[virtual]

Perform amplitude estimations.

See Go4Fit tutorial to more details.

Implements TGo4FitterAction.

Definition at line 39 of file TGo4FitAmplEstimation.cxx.

References CalculateWithBuffers(), and CalculateWithIterators().

Referenced by TGo4Fitter::EstimateAmplitudes().

void TGo4FitAmplEstimation::Print

(

Option_t *

option

)

const [virtual]

Print information on standard output.

Reimplemented from TGo4FitNamed.

Definition at line 339 of file TGo4FitAmplEstimation.cxx.

References fiNumIters, and TGo4FitNamed::Print().

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

Definition at line 46 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().

Bool_t TGo4FitAmplEstimation::CalculateWithBuffers

(

TGo4Fitter *

fitter

)

[private]

Definition at line 62 of file TGo4FitAmplEstimation.cxx.

References TGo4Fitter::DataBuffersAllocated(), TGo4Fitter::ff_chi_Pearson, TGo4Fitter::ff_ML_Poisson, TGo4Fitter::FindData(), fiNumIters, TGo4Fitter::GetData(), TGo4Fitter::GetDataBinsDevs(), TGo4Fitter::GetDataBinsResult(), TGo4Fitter::GetDataBinsSize(), TGo4Fitter::GetDataBinsValues(), TGo4Fitter::GetDataName(), TGo4Fitter::GetFitFunctionType(), TGo4Fitter::GetModel(), TGo4Fitter::GetModelBinsValues(), TGo4Fitter::GetNumData(), TGo4Fitter::GetNumModel(), TGo4FitterAbstract::IsInitialized(), TGo4Fitter::ModelBuffersAllocated(), PointWeight(), and TGo4Fitter::RebuildAll().

Referenced by DoAction().

Bool_t TGo4FitAmplEstimation::CalculateWithIterators

(

TGo4Fitter *

fitter

)

[private]

Definition at line 217 of file TGo4FitAmplEstimation.cxx.

References TGo4FitModel::AfterEval(), TGo4FitModel::EvaluateAtPoint(), TGo4Fitter::ff_chi_Pearson, TGo4Fitter::ff_ML_Poisson, TGo4Fitter::FindData(), fiNumIters, TGo4FitComponent::GetAmplValue(), TGo4Fitter::GetData(), TGo4Fitter::GetFitFunctionType(), TGo4Fitter::GetModel(), TGo4Fitter::GetNumData(), TGo4Fitter::GetNumModel(), TGo4FitDataIter::IndexesSize(), TGo4FitData::MakeIter(), TGo4FitDataIter::Next(), PointWeight(), TGo4FitDataIter::Reset(), TGo4FitComponent::SetAmplValue(), TGo4FitDataIter::StandardDeviation(), and TGo4FitDataIter::Value().

Referenced by DoAction().

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Member Data Documentation

Int_t TGo4FitAmplEstimation::fiNumIters [private]

Number of iterations, used for amplitude estimation.

Definition at line 74 of file TGo4FitAmplEstimation.h.

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

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

• TGo4FitAmplEstimation.h
• TGo4FitAmplEstimation.cxx

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