TGo4FitModelGaussN Class Reference

N-dimensional gaussian peak. More...

#include <TGo4FitModelGaussN.h>

Inheritance diagram for TGo4FitModelGaussN:


Public Member Functions
	TGo4FitModelGaussN ()
	Default constructor.
	TGo4FitModelGaussN (const char *iName, Int_t iNDimension=3)
	Creates TGo4FitModelGaussN model with given name.
virtual	~TGo4FitModelGaussN ()
	Destroys TGo4FitModelGaussN object.
Int_t	GetAxisNumbers ()
	Returns number of dimensions (number of axises), where gaussian will be build.
Bool_t	SetAxisNumbers (Int_t naxis)
	Sets number of axises (dimensions), where gaussian will be build.
Int_t	GetAxisForIndex (Int_t indx)
	Gets axis number (0 - x-axis, 1 - y-axis) for specified dimension of gaussian.
void	SetAxisForIndex (Int_t indx, Int_t axis)
	Change axis number for specified index (dimension) of gaussian.
Bool_t	ResortIndexes (Int_t leaveaxis=-1)
	Checks duplicates in axis numbers, associated to different gaussian dimensions.
void	FillMuVector (TVectorD &Mu)
	Fills vector of gaussian position from parameters values.
void	FillSigmaMatrix (TMatrixD &Sigma)
	Fill covariance matrix from parameters values.
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.
Protected Member Functions
TString	GetPosParName (Int_t naxis)
TString	GetWidthParName (Int_t naxis)
TString	GetCovarParName (Int_t naxis1, Int_t naxis2)
virtual Int_t	GetPosParIndex (Int_t naxis)
	Return index of parameter (if exist), which represent position of model for given axis.
virtual Int_t	GetWidthParIndex (Int_t naxis)
	Return index of parameter (if exist), which represent width of model component for given axis.
virtual void	AfterEval ()
	Clear buffers, which were created by BeforeEval() method.
Protected Attributes
TArrayI	fxIndexes
	Array of axis indexes, where n-dim gaussian will be build.
Private Attributes
Int_t	Par_ndim
	Temporary variable for EvalN() function.
Int_t *	Par_indx
	Temporary variable for EvalN() function.
TVectorD *	Vect_mu
	Temporary variable for EvalN() function.
TMatrixD *	Matr_sig
	Temporary variable for EvalN() function.
TVectorD *	Vect_x
	Temporary variable for EvalN() function.
TVectorD *	Vect_dx
	Temporary variable for EvalN() function.

Detailed Description

N-dimensional gaussian peak.

Has following parameters: "Ampl" - amplitude; "Pos0", "Pos1", ... - line positions; "Width0", "Width1", "... - line widths; "Cov0_1", "Cov0_2", ..., "Cov1_2", "Cov1_3", ... - covariations parameters. To create instance of this model:

TGo4FitModelGaussN *g = new TGo4FitModelGaussN("Gauss", 2);

where first parameter - name of model component, second - number of dimensions.

Definition at line 37 of file TGo4FitModelGaussN.h.

Constructor & Destructor Documentation

TGo4FitModelGaussN::TGo4FitModelGaussN ( )

Default constructor.

Definition at line 20 of file TGo4FitModelGaussN.cxx.

TGo4FitModelGaussN::TGo4FitModelGaussN	(	const char *	iName,
		Int_t	iNDimension = `3`
	)

Creates TGo4FitModelGaussN model with given name.

Number of dimensions also can be specified (default = 3).

Definition at line 24 of file TGo4FitModelGaussN.cxx.

References fxIndexes, GetCovarParName(), GetPosParName(), GetWidthParName(), and TGo4FitComponent::NewParameter().

TGo4FitModelGaussN::~TGo4FitModelGaussN ( ) [virtual]

Destroys TGo4FitModelGaussN object.

Definition at line 40 of file TGo4FitModelGaussN.cxx.

References Matr_sig, Vect_dx, Vect_mu, and Vect_x.

Member Function Documentation

Int_t TGo4FitModelGaussN::GetAxisNumbers ( ) [inline]

Returns number of dimensions (number of axises), where gaussian will be build.

Definition at line 59 of file TGo4FitModelGaussN.h.

References fxIndexes.

Referenced by SetAxisNumbers().

Bool_t TGo4FitModelGaussN::SetAxisNumbers ( Int_t naxis )

Sets number of axises (dimensions), where gaussian will be build.

Should be more than 0.

Definition at line 70 of file TGo4FitModelGaussN.cxx.

References TGo4FitParsList::FindPar(), fxIndexes, GetAxisNumbers(), GetCovarParName(), TGo4FitParsList::GetParIndex(), GetPosParName(), GetWidthParName(), TGo4FitComponent::NewParameter(), and TGo4FitParsList::RemovePar().

Int_t TGo4FitModelGaussN::GetAxisForIndex ( Int_t indx ) [inline]

Gets axis number (0 - x-axis, 1 - y-axis) for specified dimension of gaussian.

Can be, that first dimension of gaussian assign to z-axis, 2-nd dimension to x-axis, 3-rd dimension to y-axis. Default (created in constructor) is normal numbering, when number of dimension is equal to number of axis.

Definition at line 71 of file TGo4FitModelGaussN.h.

References fxIndexes.