LTL: Gaussian< TPAR, TDAT, NPAR, NDIM > Class Template Reference

LTL 2.0.x

Approximation of a Gaussian function via Marquardt-Levenberg algorithm. More...

Inherits MRQFunction< TPAR, TDAT, NPAR, NDIM >.

Public Member Functions
void	setData (const MArray< TDAT, NDIM > &indata, const TDAT in_nan, const MArray< TDAT, NDIM > &inerror2)
	Set data, error and NaN value. More...

void	freeData ()
	Free data and error. More...

TPAR	marquardtCoefficients (const FVector< TPAR, NPAR > &restrict_ parameter, const TPAR chisquare_limit, FMatrix< TPAR, NPAR, NPAR > &restrict_ a, FVector< TPAR, NPAR > &restrict_ b) const
	Calculate actual $\chi^2$ (if better than old one) and Hessematrix. More...

size_t	getNdof () const
	Return degrees of freedom for fit. More...

Static Public Member Functions
static FVector< TPAR, NPAR >	partofit (const FVector< TPAR, NPAR > &parameter)
	Convert external fit parameters to internal representation. More...

static FVector< TPAR, NPAR >	fittopar (const FVector< TPAR, NPAR > &fitpar, const typename FMatrix< TPAR, NPAR, NPAR >::TraceVector &trace)
	Convert internal fit parameters to external representation. More...

static FVector< TPAR, NPAR >	covtoerr (const typename FMatrix< TPAR, NPAR, NPAR >::TraceVector &trace, const FVector< TPAR, NPAR > &fitpar)
	Calculate external error in parameters from internal covariance matrix. More...

Protected Attributes
MArray< TDAT, NDIM >	data_

TDAT	nan_data_

MArray< TDAT, NDIM >	error2_

int	ndof_

Detailed Description

template<class TPAR, class TDAT, int NPAR, int NDIM>
class Gaussian< TPAR, TDAT, NPAR, NDIM >

Approximation of a Gaussian function via Marquardt-Levenberg algorithm.

Member Function Documentation

template<class TPAR, class TDAT, int NPAR, int NDIM>

void MRQFunction< TPAR, TDAT, NPAR, NDIM >::setData	(	const MArray< TDAT, NDIM > &	indata,
		const TDAT	in_nan,
		const MArray< TDAT, NDIM > &	inerror2
	)

inlineinherited

Set data, error and NaN value.

Referenced by PolyGaussian< TPAR, TDAT, 7, 2 >::covtoerr(), Gaussian< TPAR, TDAT, 5, 2 >::setData(), Gaussian< TPAR, TDAT, 3, 2 >::setData(), and PolyGaussian< TPAR, TDAT, 5, 2 >::setData().

template<class TPAR, class TDAT, int NPAR, int NDIM>

void MRQFunction< TPAR, TDAT, NPAR, NDIM >::freeData ( )

inlineinherited

Free data and error.

Referenced by Gaussian< TPAR, TDAT, 5, 2 >::freeData(), Gaussian< TPAR, TDAT, 3, 2 >::freeData(), and PolyGaussian< TPAR, TDAT, 5, 2 >::freeData().

template<class TPAR, class TDAT, int NPAR, int NDIM>

static FVector<TPAR, NPAR> MRQFunction< TPAR, TDAT, NPAR, NDIM >::partofit ( const FVector< TPAR, NPAR > & parameter )

inlinestaticinherited

Convert external fit parameters to internal representation.

Referenced by Gaussian< TPAR, TDAT, 7, 2 >::fill(), Gaussian< TPAR, TDAT, 5, 2 >::fill(), PolyGaussian< TPAR, TDAT, 5, 2 >::fill(), Gaussian< TPAR, TDAT, 5, 2 >::fillExp(), and PolyGaussian< TPAR, TDAT, 5, 2 >::fillExp().

template<class TPAR, class TDAT, int NPAR, int NDIM>

static FVector<TPAR, NPAR> MRQFunction< TPAR, TDAT, NPAR, NDIM >::fittopar	(	const FVector< TPAR, NPAR > &	fitpar,
		const typename FMatrix< TPAR, NPAR, NPAR >::TraceVector &	trace
	)

inlinestaticinherited

Convert internal fit parameters to external representation.

Referenced by PolyGaussian< TPAR, TDAT, 7, 2 >::covtoerr(), and PolyGaussian< TPAR, TDAT, 5, 2 >::covtoerr().

template<class TPAR, class TDAT, int NPAR, int NDIM>

static FVector<TPAR, NPAR> MRQFunction< TPAR, TDAT, NPAR, NDIM >::covtoerr	(	const typename FMatrix< TPAR, NPAR, NPAR >::TraceVector &	trace,
		const FVector< TPAR, NPAR > &	fitpar
	)

inlinestaticinherited

Calculate external error in parameters from internal covariance matrix.

template<class TPAR, class TDAT, int NPAR, int NDIM>

TPAR MRQFunction< TPAR, TDAT, NPAR, NDIM >::marquardtCoefficients	(	const FVector< TPAR, NPAR > &restrict_	parameter,
		const TPAR	chisquare_limit,
		FMatrix< TPAR, NPAR, NPAR > &restrict_	a,
		FVector< TPAR, NPAR > &restrict_	b
	)		const

inlineinherited

Calculate actual $\chi^2$ (if better than old one) and Hessematrix.

template<class TPAR, class TDAT, int NPAR, int NDIM>

size_t MRQFunction< TPAR, TDAT, NPAR, NDIM >::getNdof ( ) const

inlineinherited

Return degrees of freedom for fit.

Member Data Documentation

template<class TPAR, class TDAT, int NPAR, int NDIM>

MArray<TDAT, NDIM> MRQFunction< TPAR, TDAT, NPAR, NDIM >::data_

protectedinherited

Referenced by PolyGaussian< TPAR, TDAT, 7, 2 >::covtoerr(), PolyGaussian< TPAR, TDAT, 5, 2 >::covtoerr(), MRQFunction< TPAR, TDAT, 8, 2 >::freeData(), MRQFunction< TPAR, TDAT, 8, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 7, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 5, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 3, 2 >::marquardtCoefficients(), PolyGaussian< TPAR, TDAT, 7, 2 >::marquardtCoefficients(), PolyGaussian< TPAR, TDAT, 5, 2 >::marquardtCoefficients(), Moffat< TPAR, TDAT, 10, 2 >::marquardtCoefficients(), Moffat< TPAR, TDAT, 8, 2 >::marquardtCoefficients(), MRQFunction< TPAR, TDAT, 8, 2 >::setData(), Gaussian< TPAR, TDAT, 5, 2 >::setData(), Gaussian< TPAR, TDAT, 3, 2 >::setData(), and PolyGaussian< TPAR, TDAT, 5, 2 >::setData().

template<class TPAR, class TDAT, int NPAR, int NDIM>

TDAT MRQFunction< TPAR, TDAT, NPAR, NDIM >::nan_data_

protectedinherited

Referenced by PolyGaussian< TPAR, TDAT, 7, 2 >::covtoerr(), PolyGaussian< TPAR, TDAT, 5, 2 >::covtoerr(), MRQFunction< TPAR, TDAT, 8, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 7, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 5, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 3, 2 >::marquardtCoefficients(), PolyGaussian< TPAR, TDAT, 7, 2 >::marquardtCoefficients(), PolyGaussian< TPAR, TDAT, 5, 2 >::marquardtCoefficients(), Moffat< TPAR, TDAT, 10, 2 >::marquardtCoefficients(), Moffat< TPAR, TDAT, 8, 2 >::marquardtCoefficients(), and MRQFunction< TPAR, TDAT, 8, 2 >::setData().

template<class TPAR, class TDAT, int NPAR, int NDIM>

MArray<TDAT, NDIM> MRQFunction< TPAR, TDAT, NPAR, NDIM >::error2_

protectedinherited

Referenced by PolyGaussian< TPAR, TDAT, 7, 2 >::covtoerr(), PolyGaussian< TPAR, TDAT, 5, 2 >::covtoerr(), MRQFunction< TPAR, TDAT, 8, 2 >::freeData(), MRQFunction< TPAR, TDAT, 8, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 7, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 5, 2 >::marquardtCoefficients(), Gaussian< TPAR, TDAT, 3, 2 >::marquardtCoefficients(), PolyGaussian< TPAR, TDAT, 7, 2 >::marquardtCoefficients(), PolyGaussian< TPAR, TDAT, 5, 2 >::marquardtCoefficients(), Moffat< TPAR, TDAT, 10, 2 >::marquardtCoefficients(), Moffat< TPAR, TDAT, 8, 2 >::marquardtCoefficients(), and MRQFunction< TPAR, TDAT, 8, 2 >::setData().

template<class TPAR, class TDAT, int NPAR, int NDIM>

int MRQFunction< TPAR, TDAT, NPAR, NDIM >::ndof_

protectedinherited

Referenced by MRQFunction< TPAR, TDAT, 8, 2 >::getNdof(), and MRQFunction< TPAR, TDAT, 8, 2 >::setData().