Definition at line 6 of file GaussFunction.h.

Public Types
enum	{ kNPar = 3 }

Public Types inherited from ROOT::Math::IParametricGradFunctionMultiDimTempl< T >
using	BaseFunc = typename IParametricFunctionMultiDimTempl< T >::BaseFunc

using	BaseGradFunc = IGradientFunctionMultiDim

using	BaseParamFunc = IParametricFunctionMultiDimTempl< T >

Public Types inherited from ROOT::Math::IParametricFunctionMultiDimTempl< T >
typedef IBaseFunctionMultiDimTempl< T >	BaseFunc

Public Types inherited from ROOT::Math::IBaseFunctionMultiDimTempl< T >
typedef IBaseFunctionMultiDimTempl< T >	BaseFunc

Public Member Functions
	GaussFunction (double _amp=1, double _mean=0, double _sigma=1)

double	amp () const

ROOT::Math::IMultiGenFunction *	Clone () const
	Clone a function. More...

double	logamp () const

double	mean () const

unsigned int	NDim () const
	Retrieve the dimension of the function. More...

unsigned int	NPar () const
	Return the number of Parameters. More...

double	operator() (const double x, const double p)

void	ParameterGradient (const double x, const double p, double *g) const
	Evaluate the all the derivatives (gradient vector) of the function with respect to the parameters at a point x. More...

const double *	Parameters () const
	Access the parameter values. More...

void	SetParameters (const double *p)
	Set the parameter values. More...

double	sigma () const

Public Member Functions inherited from ROOT::Math::IParametricGradFunctionMultiDimTempl< T >
virtual	~IParametricGradFunctionMultiDimTempl ()
	Virtual Destructor (no operations) More...

double	ParameterDerivative (const double x, const double p, unsigned int ipar=0) const
	Evaluate the partial derivative w.r.t a parameter ipar from values and parameters. More...

double	ParameterDerivative (const double *x, unsigned int ipar=0) const
	Evaluate partial derivative using cached parameter values. More...

void	ParameterGradient (const double x, double grad) const
	Evaluate all derivatives using cached parameter values. More...

Public Member Functions inherited from ROOT::Math::IParametricFunctionMultiDimTempl< T >
T	operator() (const T x, const double p) const
	Evaluate function at a point x and for given parameters p. More...

Public Member Functions inherited from ROOT::Math::IBaseFunctionMultiDimTempl< T >
	IBaseFunctionMultiDimTempl ()

virtual	~IBaseFunctionMultiDimTempl ()
	virtual destructor More...

T	operator() (const T *x) const
	Evaluate the function at a point x[]. More...

Public Member Functions inherited from ROOT::Math::IBaseParam
virtual	~IBaseParam ()
	Virtual Destructor (no operations) More...

virtual std::string	ParameterName (unsigned int i) const
	Return the name of the i-th parameter (starting from zero) Overwrite if want to avoid the default name ("Par_0, Par_1, ...") More...

Private Member Functions
double	DoDerivative (const double *x, unsigned int icoord) const

double	DoEvalPar (const double x, const double p) const

double	DoParameterDerivative (const double x, const double p, unsigned int ipar) const
	Evaluate the partial derivative w.r.t a parameter ipar , to be implemented by the derived classes. More...

Private Attributes
double	fLogAmp

double	fParams [kNPar]

#include </mnt/build/workspace/root-makedoc-v610/rootspi/rdoc/src/v6-10-00-patches/math/mathcore/test/fit/GaussFunction.h>

Inheritance diagram for GaussFunction:

[legend]

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
kNPar

Definition at line 10 of file GaussFunction.h.

Constructor & Destructor Documentation

◆ GaussFunction()

GaussFunction::GaussFunction	(	double	_amp = `1`,
		double	_mean = `0`,
		double	_sigma = `1`
	)

inline

Definition at line 14 of file GaussFunction.h.

Member Function Documentation

◆ amp()

double GaussFunction::amp ( ) const

inline

Definition at line 25 of file GaussFunction.h.

◆ Clone()

ROOT::Math::IMultiGenFunction* GaussFunction::Clone ( ) const

inlinevirtual

Clone a function.

Each derived class must implement their version of the Clone method

Implements ROOT::Math::IBaseFunctionMultiDimTempl< T >.

Definition at line 35 of file GaussFunction.h.

◆ DoDerivative()

double GaussFunction::DoDerivative	(	const double *	x,
		unsigned int	icoord
	)		const

inlineprivate

Definition at line 68 of file GaussFunction.h.

◆ DoEvalPar()

double GaussFunction::DoEvalPar	(	const double *	x,
		const double *	p
	)		const

inlineprivate

Definition at line 60 of file GaussFunction.h.

◆ DoParameterDerivative()

double GaussFunction::DoParameterDerivative	(	const double *	x,
		const double *	p,
		unsigned int	ipar
	)		const

inlineprivatevirtual

Evaluate the partial derivative w.r.t a parameter ipar , to be implemented by the derived classes.

Implements ROOT::Math::IParametricGradFunctionMultiDimTempl< T >.

Definition at line 75 of file GaussFunction.h.

◆ logamp()

double GaussFunction::logamp ( ) const

inline

Definition at line 26 of file GaussFunction.h.

◆ mean()

double GaussFunction::mean ( ) const

inline

Definition at line 27 of file GaussFunction.h.

◆ NDim()

unsigned int GaussFunction::NDim ( ) const

inlinevirtual

Retrieve the dimension of the function.

Implements ROOT::Math::IBaseFunctionMultiDimTempl< T >.

Definition at line 21 of file GaussFunction.h.

◆ NPar()

unsigned int GaussFunction::NPar ( ) const

inlinevirtual

Return the number of Parameters.

Implements ROOT::Math::IBaseParam.

Definition at line 23 of file GaussFunction.h.

◆ operator()()

double GaussFunction::operator()	(	const double *	x,
		const double *	p
	)

inline

Definition at line 39 of file GaussFunction.h.

◆ ParameterGradient()

void GaussFunction::ParameterGradient	(	const double *	x,
		const double *	p,
		double *	grad
	)		const

inlinevirtual

Evaluate the all the derivatives (gradient vector) of the function with respect to the parameters at a point x.

It is optional to be implemented by the derived classes for better efficiency

Reimplemented from ROOT::Math::IParametricGradFunctionMultiDimTempl< T >.

Definition at line 46 of file GaussFunction.h.

◆ Parameters()

const double* GaussFunction::Parameters ( ) const

inlinevirtual

Access the parameter values.

Implements ROOT::Math::IBaseParam.

Definition at line 30 of file GaussFunction.h.

◆ SetParameters()

void GaussFunction::SetParameters ( const double * p )

inlinevirtual

Set the parameter values.

Parameters

p	vector of doubles containing the parameter values.

to be defined: can user change number of params ? At the moment no.

Implements ROOT::Math::IBaseParam.

Definition at line 32 of file GaussFunction.h.

◆ sigma()

double GaussFunction::sigma ( ) const

inline

Definition at line 28 of file GaussFunction.h.

Member Data Documentation

◆ fLogAmp

double GaussFunction::fLogAmp

private

Definition at line 83 of file GaussFunction.h.

◆ fParams

double GaussFunction::fParams[kNPar]

private

Definition at line 82 of file GaussFunction.h.

The documentation for this class was generated from the following file:

math/mathcore/test/fit/GaussFunction.h

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ GaussFunction()

Member Function Documentation

◆ amp()

◆ Clone()

◆ DoDerivative()

◆ DoEvalPar()

◆ DoParameterDerivative()

◆ logamp()

◆ mean()

◆ NDim()

◆ NPar()

◆ operator()()

◆ ParameterGradient()

◆ Parameters()

◆ SetParameters()

◆ sigma()

Member Data Documentation

◆ fLogAmp

◆ fParams