A class describing a resolution parameterized with a double Gaussian. More...

#include <ResDoubleGaussBase.h>

Inheritance diagram for KLFitter::ResDoubleGaussBase:

Public Member Functions
Constructors and destructors
	ResDoubleGaussBase (const char *filename)
	The default constructor.

	ResDoubleGaussBase (std::vector< double > const &parameters)
	A constructor. More...

virtual	~ResDoubleGaussBase ()
	The (defaulted) destructor.

Member functions (Get)
virtual double	GetMean1 (double x)=0
	Calculate the mean of the first Gaussian from the TF parameters and the value of x. More...

virtual double	GetSigma1 (double x)=0
	Calculate the width of the first Gaussian from the TF parameters and the value of x. More...

virtual double	GetAmplitude2 (double x)=0
	Calculate the amplitude of the second Gaussian from the TF parameters and the value of x. More...

virtual double	GetMean2 (double x)=0
	Calculate the mean of the second Gaussian from the TF parameters and the value of x. More...

virtual double	GetSigma2 (double x)=0
	Calculate the width of the sedcond Gaussian from the TF parameters and the value of x. More...

double	GetSigma (double par) override
	Return the approximate width of the TF depending on the measured value of x. More...

double	logp (double x, double xmeas, bool *good, double=0) override
	Return the probability of the true value of x given the measured value, xmeas. 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...

Static Public Member Functions
static bool	CheckDoubleGaussianSanity (double sigma1, double amplitude2, double *sigma2)
	Sanity check for double gaussian parameters p2, p3 and p5 (1st sigma, scale and 2nd sigma). 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 resolution parameterized with a double Gaussian.

This class offers a simple parameterization of a resolution. The parameterization is a double Gaussian with energy dependent parameters.

Constructor & Destructor Documentation

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

explicit

A constructor.

Parameters

parameters The parameters of the parameterization.

Member Function Documentation

static bool KLFitter::ResDoubleGaussBase::CheckDoubleGaussianSanity	(	double *	sigma1,
		double *	amplitude2,
		double *	sigma2
	)

inlinestatic

Sanity check for double gaussian parameters p2, p3 and p5 (1st sigma, scale and 2nd sigma).

Parameters

sigma1	(the 1st sigma).
amplitude2	(the scale parameter).
sigma2	(the 2nd sigma).

Returns: False if problem with TF.

virtual double KLFitter::ResDoubleGaussBase::GetAmplitude2 ( double x )

pure virtual

Calculate the amplitude of the second Gaussian from the TF parameters and the value of x.

Parameters

x	The value of x.

Returns: The width.

Implemented in KLFitter::ResDoubleGaussE_1, KLFitter::ResDoubleGaussE_2, KLFitter::ResDoubleGaussE_3, KLFitter::ResDoubleGaussE_4, KLFitter::ResDoubleGaussE_5, and KLFitter::ResDoubleGaussPt.

virtual double KLFitter::ResDoubleGaussBase::GetMean1 ( double x )

pure virtual

Calculate the mean of the first Gaussian from the TF parameters and the value of x.

Parameters

x	The value of x.

Returns: The width.

Implemented in KLFitter::ResDoubleGaussE_1, KLFitter::ResDoubleGaussE_2, KLFitter::ResDoubleGaussE_3, KLFitter::ResDoubleGaussE_4, KLFitter::ResDoubleGaussE_5, and KLFitter::ResDoubleGaussPt.

virtual double KLFitter::ResDoubleGaussBase::GetMean2 ( double x )

pure virtual

Calculate the mean of the second Gaussian from the TF parameters and the value of x.

Parameters

x	The value of x.

Returns: The width.

Implemented in KLFitter::ResDoubleGaussE_1, KLFitter::ResDoubleGaussE_2, KLFitter::ResDoubleGaussE_3, KLFitter::ResDoubleGaussE_4, KLFitter::ResDoubleGaussE_5, and KLFitter::ResDoubleGaussPt.

double KLFitter::ResDoubleGaussBase::GetSigma ( double par )

overridevirtual

Return the approximate width of the TF depending on the measured value of x.

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

Parameters

par	The measured value of x.

Returns: The width.

Implements KLFitter::ResolutionBase.

virtual double KLFitter::ResDoubleGaussBase::GetSigma1 ( double x )

pure virtual

Calculate the width of the first Gaussian from the TF parameters and the value of x.

Parameters

x	The value of x.

Returns: The width.

Implemented in KLFitter::ResDoubleGaussE_1, KLFitter::ResDoubleGaussE_2, KLFitter::ResDoubleGaussE_3, KLFitter::ResDoubleGaussE_4, KLFitter::ResDoubleGaussE_5, and KLFitter::ResDoubleGaussPt.

virtual double KLFitter::ResDoubleGaussBase::GetSigma2 ( double x )

pure virtual

Calculate the width of the sedcond Gaussian from the TF parameters and the value of x.

Parameters

x	The value of x.

Returns: The width.

Implemented in KLFitter::ResDoubleGaussE_1, KLFitter::ResDoubleGaussE_2, KLFitter::ResDoubleGaussE_3, KLFitter::ResDoubleGaussE_4, KLFitter::ResDoubleGaussE_5, and KLFitter::ResDoubleGaussPt.

double KLFitter::ResDoubleGaussBase::logp	(	double	x,
		double	xmeas,
		bool *	good,
		double	= `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: The probability.

Reimplemented from KLFitter::ResolutionBase.

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

include/KLFitter/ResDoubleGaussBase.h
src/ResDoubleGaussBase.cxx

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation