KLFitter::ResGaussPt Class Reference

A class describing a Gaussian resolution. More...

#include <ResGaussPt.h>

Inheritance diagram for KLFitter::ResGaussPt:

Public Member Functions
Constructors and destructors
	ResGaussPt (const char *filename)
	The default constructor.
	ResGaussPt (double sigma)
	A constructor. More...
	ResGaussPt (std::vector< double > const &parameters)
	A constructor. More...
	~ResGaussPt ()
	The (defaulted) destructor.
Member functions (Get)
double	GetSigma (double par) override
	Return the width of the TF depending on the value of energy x. More...
double	logp (double x, double xmeas, bool *good, double par=0) override
	Return the probability of the true value of x given the measured value, xmeas. More...
Member functions (Set)
void	SetSigma (double sigma)
	Set the width of the Gaussian. More...
Public Member Functions inherited from KLFitter::ResolutionBase
	ResolutionBase (int npar)
	The default constructor. More...
	ResolutionBase (std::vector< double > parameters)
	A constructor. More...
virtual	~ResolutionBase ()
	The (defaulted) destructor.
int	Par (int index, double *par)
	Return a parameter of the parameterization. More...
int	SetPar (int index, double value)
	Set a parameter value. More...
int	SetPar (std::vector< double > parameters)
	Set all parameter values. More...
int	ReadParameters (const char *filename, std::size_t nparameters)
	Read parameter values from ASCII file. More...
int	Status ()
	Return a status code. More...

Additional Inherited Members
Protected Attributes inherited from KLFitter::ResolutionBase
int	fNParameters
	The number of parameters.
std::vector< double >	fParameters
	The parameter values.
int	fStatus
	The status of this class (1: ok, 0: error).

Detailed Description

A class describing a Gaussian resolution.

This class offers a simple parameterization of a resolution. The parameterization is a Gaussian with a width parametrized as a function of the true parameter.

Constructor & Destructor Documentation

KLFitter::ResGaussPt::ResGaussPt ( double  sigma )

explicit

A constructor.

Parameters

sigma

The width of the Gaussian.

KLFitter::ResGaussPt::ResGaussPt ( std::vector< double > const &  parameters )

explicit

A constructor.

Parameters

sigma

The width of the Gaussian.

Member Function Documentation

double KLFitter::ResGaussPt::GetSigma ( double  par )

overridevirtual

Return the width of the TF depending on the value of energy x.

Used to adjust the range of the fit parameter that correspond to the TF.

Parameters

par	true energy as parameter of the TF.

Returns

The width.

Implements KLFitter::ResolutionBase.

double KLFitter::ResGaussPt::logp ( double  x, double  xmeas, bool *  good, double  par = 0  )

overridevirtual

Return the probability of the true value of x given the measured value, xmeas.

Parameters

x	The true value of x.
xmeas	The measured value of x.
good	False if problem with TF.
par	Optional additional parameter (not used here).

Returns

Logarithm of the probability.

Reimplemented from KLFitter::ResolutionBase.

void KLFitter::ResGaussPt::SetSigma ( double  sigma )

inline

Set the width of the Gaussian.

Parameters

sigma

The width of the Gaussian.

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

• include/KLFitter/ResGaussPt.h
• src/ResGaussPt.cxx