TGo4FitModelFromData Class Reference

Model object, which is uses TGo4FitData object to produce model bins. More...

#include <TGo4FitModelFromData.h>

Inheritance diagram for TGo4FitModelFromData:

List of all members.

Public Member Functions
	TGo4FitModelFromData ()
	Default constructor.
	TGo4FitModelFromData (const char *iName, TGo4FitData *iDataAsModel=0, Bool_t Amplitude=kTRUE)
	Creates TGo4FitModelFromData object with given name.
	TGo4FitModelFromData (const char *iName, TH1 *, Bool_t iOwned=kFALSE, Bool_t Amplitude=kTRUE)
	Creates TGo4FitModelFromData object with given name, which uses external histogram as model component.
	~TGo4FitModelFromData ()
	Destroy TGo4FitModelFromData object.
TGo4FitData *	GetDataAsModel () const
	Return pointer on TGo4FitData object, which is used as model component.
void	SetDataAsModel (TGo4FitData *iData, Bool_t iOwned)
	Sets pointer on TGo4FitData object with ownership flag.
virtual void	FillSlotList (TSeqCollection *list)
	Add ponter on slot, which should contain TGo4FitData object, to a slots list.
virtual void	Print (Option_t *option) const
	Print information on standard output.
virtual Bool_t	BeforeEval (Int_t)
	Prepares (if necesary) some intermediate variables to be able calculate values of model via EvalN() function.
virtual Double_t	EvalN (const Double_t *v)
	Calculates value of model according current parameters values and provided axes values.
virtual Double_t	EvaluateAtPoint (TGo4FitData *data, Int_t nbin, Bool_t UseRanges=kTRUE)
	Evaluate model value for specified data point.
virtual Double_t	EvaluateAtPoint (TGo4FitDataIter *iter, Bool_t UseRanges=kTRUE)
	Evaluate model value for point, specified by current values of iterator.
virtual void	AfterEval ()
	Clear buffers, which were created by BeforeEval() method.
Protected Member Functions
virtual Bool_t	Initialize (Int_t UseBuffers=-1)
	Initialize object.
Double_t	FindDataPoint (Int_t NumIndexes, const Int_t *Indexes)
Protected Attributes
TGo4FitSlot	fxData
	Slot for TGo4FitData object, which is used as model component.
Private Attributes
TGo4FitDataIter *	fxIter

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Detailed Description

Model object, which is uses TGo4FitData object to produce model bins.

In constructor one should just specify data object (it may be TGo4FitDataHistogram or other), which will be used as model. Optionally, amplitude parameter can be created. For instance:

TH1* histo = GetHistogramSomewhere(); TGo4FitDataHistogram *h = new TGo4FitDataHistogram("hdata", histo, kFALSE); TGo4FitModelFromData *m = new TGo4FitModelFromData("hmodel", h, kFALSE);

The dimensions and bins number on each axis of data object, used in model, should be absolutely the same, as in data object, which should be fitted. Assigned data object will be owned by TGo4FitModelFromData object. But data source object (histogram "histo" in example) may not be owned by object and may be provided later by SetObject() method of fitter.

TGo4Fitter *fitter = GetFitterSomewhere(); TH1* histo = GetHistogramSomewhere(); fitter->SetObject(histo, "hdata");

The name of data object "hdata" instead of model object "hmodel" should be used, when assigning data to TGo4FitModelFromData object via SetObject() method of fitter.

Definition at line 43 of file TGo4FitModelFromData.h.

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Constructor & Destructor Documentation

TGo4FitModelFromData::TGo4FitModelFromData (   )

Default constructor. Definition at line 26 of file TGo4FitModelFromData.cxx.

TGo4FitModelFromData::TGo4FitModelFromData (  const char *  iName, TGo4FitData *  iDataAsModel = 0, Bool_t  Amplitude = kTRUE )

Creates TGo4FitModelFromData object with given name. Pointer on TGo4FitData object and usage of amplitude can be specified. Definition at line 29 of file TGo4FitModelFromData.cxx.

TGo4FitModelFromData::TGo4FitModelFromData (  const char *  iName, TH1 *  , Bool_t  iOwned = kFALSE, Bool_t  Amplitude = kTRUE )

Creates TGo4FitModelFromData object with given name, which uses external histogram as model component. In constructor TGo4FitDataHistogram object will be created, to which histogram will be assigned. Additionally ownership flag for histogram and usage of amplitude can be specified. Definition at line 35 of file TGo4FitModelFromData.cxx. References SetDataAsModel().

TGo4FitModelFromData::~TGo4FitModelFromData (   )

Destroy TGo4FitModelFromData object. Definition at line 42 of file TGo4FitModelFromData.cxx. References fxIter.

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Member Function Documentation

TGo4FitData * TGo4FitModelFromData::GetDataAsModel (   )  const

Return pointer on TGo4FitData object, which is used as model component. Definition at line 47 of file TGo4FitModelFromData.cxx. References fxData, and TGo4FitSlot::GetObject(). Referenced by BeforeEval(), FillSlotList(), Initialize(), and Print().

void TGo4FitModelFromData::SetDataAsModel (  TGo4FitData *  iData, Bool_t  iOwned )

Sets pointer on TGo4FitData object with ownership flag. Definition at line 52 of file TGo4FitModelFromData.cxx. References fxData, TGo4FitSlot::SetObject(), and TGo4FitSlotList::SetUpdateSlotList(). Referenced by TGo4FitModelFromData().

void TGo4FitModelFromData::FillSlotList (  TSeqCollection *  list  )  [virtual]

Add ponter on slot, which should contain TGo4FitData object, to a slots list. Reimplemented from TGo4FitSlotList. Definition at line 93 of file TGo4FitModelFromData.cxx. References TGo4FitSlotList::FillSlotList(), fxData, and GetDataAsModel().

void TGo4FitModelFromData::Print (  Option_t *  option  )  const [virtual]

Print information on standard output. Reimplemented from TGo4FitModel. Definition at line 99 of file TGo4FitModelFromData.cxx. References GetDataAsModel(), and TGo4FitModel::Print().

Bool_t TGo4FitModelFromData::BeforeEval (  Int_t   )  [virtual]

Prepares (if necesary) some intermediate variables to be able calculate values of model via EvalN() function. Number of axis, which will be used in evaluations, should be specified. Reimplemented from TGo4FitModel. Definition at line 70 of file TGo4FitModelFromData.cxx. References fxIter, GetDataAsModel(), and TGo4FitDataIter::Reset().

virtual Double_t TGo4FitModelFromData::EvalN (  const Double_t *  v  )  [inline, virtual]

Calculates value of model according current parameters values and provided axes values. BeforeEval(), EvalN() & AfterEval() virtual methods provides general interface, where user-specific code should be situated. Reimplemented from TGo4FitModel. Definition at line 90 of file TGo4FitModelFromData.h.

Double_t TGo4FitModelFromData::EvaluateAtPoint (  TGo4FitData *  data, Int_t  nbin, Bool_t  UseRanges = kTRUE )  [virtual]

Evaluate model value for specified data point. All scales values will be take from data buffers, therefore data should be initialized. Reimplemented from TGo4FitModel. Definition at line 78 of file TGo4FitModelFromData.cxx. References FindDataPoint(), TGo4FitModel::GetDataFullIndex(), and TGo4FitModel::GetDataIndexesSize().

Double_t TGo4FitModelFromData::EvaluateAtPoint (  TGo4FitDataIter *  iter, Bool_t  UseRanges = kTRUE )  [virtual]

Evaluate model value for point, specified by current values of iterator. Reimplemented from TGo4FitModel. Definition at line 83 of file TGo4FitModelFromData.cxx. References FindDataPoint(), TGo4FitDataIter::Indexes(), and TGo4FitDataIter::IndexesSize().

void TGo4FitModelFromData::AfterEval (   )  [virtual]

Clear buffers, which were created by BeforeEval() method. Reimplemented from TGo4FitModel. Definition at line 88 of file TGo4FitModelFromData.cxx. References fxIter.

Bool_t TGo4FitModelFromData::Initialize (  Int_t  UseBuffers = -1  )  [protected, virtual]

Initialize object. Reimplemented from TGo4FitModel. Definition at line 57 of file TGo4FitModelFromData.cxx. References TGo4FitModel::GetAssignedConnection(), GetDataAsModel(), TGo4FitModel::Initialize(), and TGo4FitModel::NumAssigments().

Double_t TGo4FitModelFromData::FindDataPoint (  Int_t  NumIndexes, const Int_t *  Indexes )  [protected]

Definition at line 105 of file TGo4FitModelFromData.cxx. References fxIter, TGo4FitDataIter::Indexes(), TGo4FitDataIter::IndexesSize(), TGo4FitDataIter::Next(), TGo4FitDataIter::ReachEnd(), and TGo4FitDataIter::Value(). Referenced by EvaluateAtPoint().

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Member Data Documentation

TGo4FitSlot TGo4FitModelFromData::fxData [protected]

Slot for TGo4FitData object, which is used as model component. slot for TGo4FitData Definition at line 110 of file TGo4FitModelFromData.h. Referenced by FillSlotList(), GetDataAsModel(), and SetDataAsModel().

TGo4FitDataIter* TGo4FitModelFromData::fxIter [private]

Definition at line 113 of file TGo4FitModelFromData.h. Referenced by AfterEval(), BeforeEval(), FindDataPoint(), and ~TGo4FitModelFromData().

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

• Go4Fit/TGo4FitModelFromData.h
• Go4Fit/TGo4FitModelFromData.cxx

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