TGo4FitModelFromData Class Reference

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

#include <TGo4FitModelFromData.h>

Inheritance diagram for TGo4FitModelFromData:


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

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 41 of file TGo4FitModelFromData.h.

Constructor & Destructor Documentation

TGo4FitModelFromData::TGo4FitModelFromData ( )

Default constructor.

Definition at line 24 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 27 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 33 of file TGo4FitModelFromData.cxx.

References SetDataAsModel().

TGo4FitModelFromData::~TGo4FitModelFromData ( )

Destroy TGo4FitModelFromData object.

Definition at line 40 of file TGo4FitModelFromData.cxx.

References fxIter.