GaussianDist Class Reference

Gaussian distribution. More...

#include <XeStat.h>

Inheritance diagram for GaussianDist:

List of all members.

Public Member Functions
double	cdf (double x)
	return the cumulated distribution function
	GaussianDist (double mu, double sigma)
	Regular constructor.
	GaussianDist ()
	Empty constructor for ROOT.
double	generate ()
	generate a pseudo random variable according to this distribution
double	logPdf (double x)
	returns logs of probability density function
double	pdf (double x)
	return the normalized probability distribution function
void	setMu (double mu)
	Set the aveage.
void	setSigma (double sigma)
	Set the standard deviation.
Static Public Member Functions
static double	above (double nSigmas)
	Compute the fraction of the distribution above n Sigmas.
static double	below (double nSigmas)
	Compute the fraction of the distribution below n Sigmas.
static double	generate (double m, double sig)
static double	inside (double Xmin, double Xmax, double sigma=1.)
	Compute the fraction of the distribution between Xmin and Xmax.
static double	logPdf (double x, double mean, double sigma)
Protected Attributes
double	mu
double	sigma

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Detailed Description

Gaussian distribution.

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Constructor & Destructor Documentation

GaussianDist::GaussianDist	(	double	mu,
		double	sigma
	)

Regular constructor.

Parameters:

	mu	mean
	sigma	sigma

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Member Function Documentation

double GaussianDist::cdf

(

double

x

)

[virtual]

return the cumulated distribution function

Parameters:

x

the random variable

Implements XeDist.

static double GaussianDist::inside	(	double	Xmin,
		double	Xmax,
		double	sigma = 1.
	)			[static]

Compute the fraction of the distribution between Xmin and Xmax.

Parameters:

	Xmin	lower bound of the integral
	Xmax	upper bound of the integral
	sigma	std of the distribution (default is 1.)

double GaussianDist::logPdf

(

double

x

)

[virtual]

returns logs of probability density function

Returns:

Log of probability density function

Parameters:

x

Point at which is it evaluated

Reimplemented from XeDist.

double GaussianDist::pdf

(

double

x

)

[virtual]

return the normalized probability distribution function

Parameters:

x

the random variable

Implements XeDist.

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

• /home/lellouch/Dropbox/Xenon/Xephyr/XeStat.h