pbl::Mixture Class Reference

This class represents the weighted sum of a finite set of probability density functions. More...

#include <Mixture.h>

Inheritance diagram for pbl::Mixture:

List of all members.

Classes
struct	MixtureStruct
Public Member Functions
void	addComponent (const PDF &pdf, double w)
	Adds a component pdf with given weight.
void	clear ()
	Removes all components.
Mixture *	clone () const
	Creates a clone of the object. The clone method is cheap since it only copies a pointer. A deep clone will only be created if the original object is modified.
int	components () const
	Returns the number of components.
const PDF &	getComponent (int i) const
	Returns a reference to the i'th component.
double	getLikelihood (const PDF &pdf) const
double	getMaxDensity () const
	NOT IMPLEMENTED FOR MIXTURE.
double	getWeight (int i) const
	Returns the weight of the i'th component.
	Mixture ()
	Constructs a mixture pdf with no initial components.
	Mixture (const Mixture &orig)
	Copy constructor.
void	normalizeWeights ()
	Normalizes the weights of all components.
Mixture &	operator= (const Mixture &other)
	Assignment operator. The operation is cheap since it only copies a pointer. A deep clone will only be created if the original object is modified.
std::string	toString (const std::string &indent="") const
	Represents the Mixture as a string for easier console output.
virtual	~Mixture ()
	Destructor.
Protected Member Functions
void	cloneStruct ()
Protected Attributes
MixtureStruct *	ptr_

---

Detailed Description

This class represents the weighted sum of a finite set of probability density functions.

Author:

Sjoerd van den Dries

Date:

December, 2012

Version:

1.0

Definition at line 54 of file Mixture.h.

---

Constructor & Destructor Documentation

Mixture::Mixture

(

)

Constructs a mixture pdf with no initial components.

Definition at line 41 of file Mixture.cpp.

Mixture::Mixture

(

const Mixture &

orig

)

Copy constructor.

Definition at line 44 of file Mixture.cpp.

Mixture::~Mixture

(

)

[virtual]

Destructor.

Definition at line 50 of file Mixture.cpp.

---

Member Function Documentation

void Mixture::addComponent	(	const PDF &	pdf,
		double	w
	)

Adds a component pdf with given weight.

Parameters:

pdf	The component pdf
w	Weight of the component

Definition at line 120 of file Mixture.cpp.

void Mixture::clear

(

void

)

Removes all components.

Definition at line 101 of file Mixture.cpp.

Mixture * Mixture::clone

(

)

const [virtual]

Creates a clone of the object. The clone method is cheap since it only copies a pointer. A deep clone will only be created if the original object is modified.

Implements pbl::PDF.

Definition at line 76 of file Mixture.cpp.

void Mixture::cloneStruct

(

)

[protected]

Definition at line 80 of file Mixture.cpp.

int Mixture::components

(

)

const

Returns the number of components.

Returns:

The number of components

Definition at line 116 of file Mixture.cpp.

const PDF & Mixture::getComponent

(

int

i

)

const

Returns a reference to the i'th component.

Parameters:

i	Index of the component

Returns:

A reference to the i'th component

Definition at line 139 of file Mixture.cpp.

double Mixture::getLikelihood

(

const PDF &

pdf

)

const [virtual]

Implements pbl::PDF.

Definition at line 87 of file Mixture.cpp.

double Mixture::getMaxDensity

(

)

const [virtual]

NOT IMPLEMENTED FOR MIXTURE.

Implements pbl::PDF.

Definition at line 111 of file Mixture.cpp.

double Mixture::getWeight

(

int

i

)

const

Returns the weight of the i'th component.

Parameters:

i	Index of the component

Returns:

The weight of the i'th component

Definition at line 144 of file Mixture.cpp.

void Mixture::normalizeWeights

(

)

Normalizes the weights of all components.

Definition at line 149 of file Mixture.cpp.

Mixture & Mixture::operator=

(

const Mixture &

other

)

Assignment operator. The operation is cheap since it only copies a pointer. A deep clone will only be created if the original object is modified.

Definition at line 60 of file Mixture.cpp.

std::string Mixture::toString

(

const std::string &

indent = ""

)

const [virtual]

Represents the Mixture as a string for easier console output.

Note:

Should be changed into stream operator <<

Returns:

The Gaussian as string

Implements pbl::PDF.

Definition at line 162 of file Mixture.cpp.

---

Member Data Documentation

MixtureStruct* pbl::Mixture::ptr_ [protected]

Definition at line 173 of file Mixture.h.

---

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

• Mixture.h
• Mixture.cpp