Utility class to provide often used probability distributions in radio reconstruction. In addition this singleton class can return random variables. Currently only Fisher is implemented. More...

#include <Probability.h>

Inheritance diagram for utl::Probability:

[legend]

Public Member Functions
utl::Vector	GetFisher (const utl::Vector &meanDirection, const double alpha)
	returns a random vector that has an angle alpha wrt the given vector More...

double	GetRandomFisher (const double k)
	returns a Fisher distributed random variable More...

utl::Vector	GetRandomFisher (const utl::Vector &meanDirection, const double k)

double	GetRandomRayleigh (const double sigma)
	returns a Rayleigh distributed random variable More...

void	SetSeed (const unsigned int seed)

Static Public Member Functions
static double	GetFisherCDF (const double x, const double kappa)

static double	GetFisherPDF (const double x, const double kappa)

static double	GetNormalPDF (const double x, const double mu, const double sigma)

static double	GetRayleighCDF (const double x, const double sigma)
	evaluates the Rayleigh CDF of sigma at position x More...

static double	GetRayleighPDF (const double x, const double sigma)
	evaluates the Rayleigh PDF of sigma at position x More...

static long double	GetVonMisesPDF (const double x, const double mu, const double kappa)

Public Attributes
static Probability &return	instance

Private Member Functions
TVector3	GetRandomVectorOnSphere ()

	Probability ()

Private Attributes
TRandom3	fRand

Friends
class	Singleton< Probability >

Detailed Description

Utility class to provide often used probability distributions in radio reconstruction. In addition this singleton class can return random variables. Currently only Fisher is implemented.

Author: Christian Glaser

Definition at line 32 of file Probability.h.

Constructor & Destructor Documentation

utl::Probability::Probability ( )

private

Definition at line 17 of file Probability.cc.

Member Function Documentation

Vector utl::Probability::GetFisher	(	const utl::Vector &	meanDirection,
		const double	alpha
	)

returns a random vector that has an angle alpha wrt the given vector

Definition at line 104 of file Probability.cc.

References GetRandomVectorOnSphere(), utl::BasicVector< HepVector >::GetX(), utl::BasicVector< HepVector >::GetY(), and utl::BasicVector< HepVector >::GetZ().

Referenced by GetRandomFisher().

double utl::Probability::GetFisherCDF	(	const double	x,
		const double	kappa
	)

static

Definition at line 74 of file Probability.cc.

Referenced by RdLDFFitter::RdLDFFitter::PlotScan(), and RdLDFFitter::RdLDFFitter::Run().

double utl::Probability::GetFisherPDF	(	const double	x,
		const double	kappa
	)

static

Definition at line 67 of file Probability.cc.

Referenced by RdLDFFitter::RdLDFFitter::PlotScan().

double utl::Probability::GetNormalPDF	(	const double	x,
		const double	mu,
		const double	sigma
	)

static

Definition at line 50 of file Probability.cc.

References sqrt().

Referenced by GetVonMisesPDF().

double utl::Probability::GetRandomFisher ( const double k )

returns a Fisher distributed random variable

Definition at line 89 of file Probability.cc.

References fRand.

Referenced by GetRandomFisher().

Vector utl::Probability::GetRandomFisher	(	const utl::Vector &	meanDirection,
		const double	k
	)

returns a Fisher distributed vector, this is the angle between returned and given vector is Fisher distributed

Definition at line 96 of file Probability.cc.

References GetFisher(), and GetRandomFisher().

double utl::Probability::GetRandomRayleigh ( const double sigma )

returns a Rayleigh distributed random variable

Definition at line 82 of file Probability.cc.

References fRand, and sqrt().

TVector3 utl::Probability::GetRandomVectorOnSphere ( )

private

Definition at line 122 of file Probability.cc.

References fRand, and sqrt().

Referenced by GetFisher().

double utl::Probability::GetRayleighCDF	(	const double	x,
		const double	sigma
	)

static

evaluates the Rayleigh CDF of sigma at position x

Definition at line 41 of file Probability.cc.

double utl::Probability::GetRayleighPDF	(	const double	x,
		const double	sigma
	)

static

evaluates the Rayleigh PDF of sigma at position x

Definition at line 31 of file Probability.cc.

long double utl::Probability::GetVonMisesPDF	(	const double	x,
		const double	mu,
		const double	kappa
	)

static

Definition at line 58 of file Probability.cc.

References GetNormalPDF(), and sqrt().

Referenced by RdLDFFitter::LDFLikelihoodFunction::GetLikelihoodPolarisation().

void utl::Probability::SetSeed ( const unsigned int seed )

Definition at line 23 of file Probability.cc.

References fRand.

Friends And Related Function Documentation

friend class Singleton< Probability >

friend

Definition at line 83 of file Probability.h.

Member Data Documentation

TRandom3 utl::Probability::fRand

private

Definition at line 81 of file Probability.h.

Referenced by GetRandomFisher(), GetRandomRayleigh(), GetRandomVectorOnSphere(), and SetSeed().

Probability & return utl::Singleton< Probability >::instance

inherited

Definition at line 44 of file Singleton.h.

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

Public Member Functions

Static Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation