ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM > Class Template Reference
[Non Linear Least Squares Fitting]

Mother (and example) for function class suitable for ltl::Marquardt. More...

Inherited by ltl::Gaussian< TPAR, TDAT, NPAR, NDIM >, ltl::Moffat< TPAR, TDAT, NPAR, NDIM >, ltl::Moffat< TPAR, TDAT, 10, 2 >, ltl::Moffat< TPAR, TDAT, 8, 2 >, ltl::PolyGaussian< TPAR, TDAT, NPAR, NDIM >, and ltl::PolyGaussian< TPAR, TDAT, 7, 2 >.

List of all members.

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.
  

• void freeData ()

  Free data and error.
  

• 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 (if better than old one) and Hessematrix.
  

• size_t getNdof () const

  Return degrees of freedom for fit.
  

Static Public Member Functions

• static FVector< TPAR, NPAR > partofit (const FVector< TPAR, NPAR > &parameter)

  Convert external fit parameters to internal representation.
  

• 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.
  

• 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.
  

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

Mother (and example) for function class suitable for ltl::Marquardt.

---

Member Function Documentation

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

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

Set data, error and NaN value.

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

void ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::freeData

(

)

[inline]

Free data and error.

Reimplemented in ltl::Gaussian< TPAR, TDAT, 5, 2 >, ltl::Gaussian< TPAR, TDAT, 3, 2 >, and ltl::PolyGaussian< TPAR, TDAT, 5, 2 >.

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

static FVector<TPAR, NPAR> ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::partofit

(

const FVector< TPAR, NPAR > &

parameter

)

[inline, static]

Convert external fit parameters to internal representation.

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

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

Convert internal fit parameters to external representation.

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

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

Calculate external error in parameters from internal covariance matrix.

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

TPAR ltl::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 [inline]

Calculate actual (if better than old one) and Hessematrix.

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

size_t ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::getNdof

(

)

const [inline]

Return degrees of freedom for fit.

---

Member Data Documentation

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

MArray<TDAT, NDIM> ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::data_ [protected]

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

TDAT ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::nan_data_ [protected]

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

MArray<TDAT, NDIM> ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::error2_ [protected]

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

int ltl::MRQFunction< TPAR, TDAT, NPAR, NDIM >::ndof_ [protected]