TGo4FitAmplEstimation Class Reference

#include <TGo4FitAmplEstimation.h>

Inheritance diagram for TGo4FitAmplEstimation:

Public Member Functions
	TGo4FitAmplEstimation ()
	TGo4FitAmplEstimation (const char *Name, Int_t NumIters=1)
virtual	~TGo4FitAmplEstimation ()
Int_t	GetNumIterations ()
void	SetNumIterations (Int_t iNumIters)
virtual Bool_t	NeedBuffers () const
virtual void	DoAction (TGo4FitterAbstract *Fitter)
virtual void	Print (Option_t *option) const
Public Member Functions inherited from TGo4FitterAction
	TGo4FitterAction ()
	TGo4FitterAction (const char *Name, const char *Title, TNamed *Owner=0)
virtual	~TGo4FitterAction ()
virtual Bool_t	CanChangeFitter () const
Public Member Functions inherited from TGo4FitNamed
	TGo4FitNamed ()
	TGo4FitNamed (const char *Name, const char *Title, TNamed *Owner=0)
virtual	~TGo4FitNamed ()
const char *	GetFullName ()
const char *	GetOwnerFullName ()
void	SetOwner (TNamed *iOwner)
TNamed *	GetOwner ()
void	Print (Option_t *option) const

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

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.

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.

Member Function Documentation

Bool_t TGo4FitAmplEstimation::CalculateWithBuffers ( TGo4Fitter *  fitter )

private

Definition at line 62 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().

Bool_t TGo4FitAmplEstimation::CalculateWithIterators ( TGo4Fitter *  fitter )

private

Definition at line 217 of file TGo4FitAmplEstimation.cxx.

References TGo4FitModel::AfterEval(), TGo4FitModel::AssignmentName(), TGo4FitModel::BeforeEval(), TGo4FitModel::EvaluateAtPoint(), TGo4Fitter::ff_chi_Pearson, TGo4Fitter::ff_ML_Poisson, TGo4Fitter::FindData(), fiNumIters, TGo4FitComponent::GetAmplPar(), TGo4FitComponent::GetAmplValue(), TGo4Fitter::GetData(), TGo4Fitter::GetFitFunctionType(), TGo4FitParameter::GetFixed(), TGo4Fitter::GetModel(), TGo4Fitter::GetNumData(), TGo4Fitter::GetNumModel(), TGo4FitModel::GetRatioValueFor(), TGo4FitDataIter::IndexesSize(), TGo4FitModel::IsAssignTo(), TGo4FitData::MakeIter(), TGo4FitDataIter::Next(), TGo4FitModel::NumAssigments(), PointWeight(), TGo4FitDataIter::Reset(), TGo4FitComponent::SetAmplError(), TGo4FitComponent::SetAmplValue(), TGo4FitDataIter::StandardDeviation(), and TGo4FitDataIter::Value().

Referenced by DoAction().

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().

Int_t TGo4FitAmplEstimation::GetNumIterations ( )

inline

Returns number of iterations.

Definition at line 47 of file TGo4FitAmplEstimation.h.

References fiNumIters.

virtual Bool_t TGo4FitAmplEstimation::NeedBuffers ( ) const

inlinevirtual

Reimplemented from TGo4FitterAction.

Definition at line 54 of file TGo4FitAmplEstimation.h.

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().

void TGo4FitAmplEstimation::Print ( Option_t *  option ) const

virtual

Print information on standard output.

Definition at line 339 of file TGo4FitAmplEstimation.cxx.

References fiNumIters, and TGo4FitNamed::Print().

void TGo4FitAmplEstimation::SetNumIterations ( Int_t  iNumIters )

inline

Sets number of iterations.

Definition at line 52 of file TGo4FitAmplEstimation.h.

References fiNumIters.

Referenced by QFitAmplEstimWidget::Iterations_valueChanged().

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:

• Go4Fit/TGo4FitAmplEstimation.h
• Go4Fit/TGo4FitAmplEstimation.cxx