LTL: ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM > Class Template Reference

LTL 2.0.x

Marquardt-Levenberg approximation of an arbitrary fitfunction TFUNC. More...

Public Member Functions
	Marquardt (const size_t initer, const TPAR ainstart, const TPAR ainstep, const TPAR ainmin, const TPAR ainmax, const FVector< bool, NPAR > ignin=false)
	Construct class with fit constraints. More...

void	eval (const MArray< TDAT, NDIM > &restrict_ data, const TDAT nan, const MArray< TDAT, NDIM > &restrict_ error2, const FVector< TPAR, NPAR > &inpar)
	Fit to data and ignoring nan, start with inpar. More...

FVector< TPAR, NPAR >	getResult ()
	Return result vector. More...

TPAR	getChiSquare () const
	Return final $\chi^2$ . More...

size_t	getNIteration () const
	Return No needed iterations. More...

FVector< TPAR, NPAR >	getVariance ()
	Return in fit parameters. More...

Detailed Description

template<class TFUNC, class TPAR, class TDAT, int NPAR, int NDIM>
class ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >

Marquardt-Levenberg approximation of an arbitrary fitfunction TFUNC.

Class to fit an arbitrary function TFUNC to arbitrary data (and error).

Constructor & Destructor Documentation

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

ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >::Marquardt	(	const size_t	initer,
		const TPAR	ainstart,
		const TPAR	ainstep,
		const TPAR	ainmin,
		const TPAR	ainmax,
		const FVector< bool, NPAR >	ignin = `false`
	)

inline

Construct class with fit constraints.

Member Function Documentation

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

void ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >::eval	(	const MArray< TDAT, NDIM > &restrict_	data,
		const TDAT	nan,
		const MArray< TDAT, NDIM > &restrict_	error2,
		const FVector< TPAR, NPAR > &	inpar
	)

inline

Fit to data and $error^2$ ignoring nan, start with inpar.

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

FVector<TPAR, NPAR> ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >::getResult ( )

inline

Return result vector.

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

TPAR ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >::getChiSquare ( ) const

inline

Return final $\chi^2$ .

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

size_t ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >::getNIteration ( ) const

inline

Return No needed iterations.

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

FVector<TPAR, NPAR> ltl::Marquardt< TFUNC, TPAR, TDAT, NPAR, NDIM >::getVariance ( )

inline

Return $error^2$ in fit parameters.

References ltl::FMatrix< T, M, N >::traceVector().