#include <Mixture.h>

Inheritance diagram for alize::Mixture:

Collaboration diagram for alize::Mixture:

Public Member Functions
	Mixture (const String &id, unsigned long distribCount, unsigned long vectSize)
virtual bool	operator== (const Mixture &) const =0
bool	operator!= (const Mixture &) const
virtual	~Mixture ()
Mixture &	duplicate (const K &, DuplDistrib) const
virtual void	reset ()
virtual Mixture &	operator= (const Mixture &m)=0
virtual void	addDistrib (const K &, Distrib &d, weight_t w=0.0)
virtual void	setDistrib (const K &, Distrib &d, unsigned long index)
Distrib &	getDistrib (unsigned long index) const
	Returns a distribution.
weight_t &	weight (unsigned long index)
weight_t	weight (unsigned long index) const
String	getId () const
unsigned long	getVectSize () const
void	save (const String &n, const Config &c) const
unsigned long	getDistribCount () const
void	equalizeWeights ()
void	computeAll ()
DoubleVector &	getTabWeight ()
const DoubleVector &	getTabWeight () const
Distrib **	getTabDistrib () const
void	setId (const K &, const String &id)
void	setId (const String &id)
virtual DistribType	getType () const =0
virtual MixtureStat &	createNewMixtureStatObject (const K &, StatServer &ss, const Config &) const =0
void	removeAllDistrib (const K &)
virtual String	toString () const
virtual String	getClassName () const =0
Static Public Member Functions
static Mixture &	create (const K &, const unsigned long dc, const DistribType, const String &id, const unsigned long vectSize)
Protected Member Functions
virtual void	assign (const Mixture &)
virtual Mixture &	clone (DuplDistrib) const =0
Protected Attributes
unsigned long	_vectSize
DoubleVector	_weightVect
DistribRefVector	_distribVect
String	_id

Detailed Description

Abstract class for a mixture of distributions.

Author:: Frederic Wils frederic.wils@lia.univ-avignon.fr

Version:: 1.0

Date:: 2003

Warning:: The mixtures server is responsible for creating and deleting mixtures. Do not create mixtures by yourself.

Definition at line 87 of file Mixture.h.

Constructor & Destructor Documentation

alize::Mixture::Mixture	(	const String &	id,
		unsigned long	distribCount,
		unsigned long	vectSize
	)		`[explicit]`

virtual alize::Mixture::~Mixture ( ) [virtual]

Member Function Documentation

virtual void alize::Mixture::addDistrib	(	const K &	,
		Distrib &	d,
		weight_t	w = `0.0`
	)		`[virtual]`

Adds a distribution to this mixture

Parameters:

d	Distrib object to add
w	weight of the distribution

Reimplemented in alize::MixtureGD, and alize::MixtureGF.

virtual void alize::Mixture::assign ( const Mixture & ) [protected, virtual]

Referenced by alize::MixtureGF::operator=(), and alize::MixtureGD::operator=().

virtual Mixture& alize::Mixture::clone ( DuplDistrib ) const [protected, pure virtual]

Implemented in alize::MixtureGD, and alize::MixtureGF.

void alize::Mixture::computeAll ( )

Computes distributions internal data (determinant of the matrix, inverse covariance and a constante used for likelihood computation)

static Mixture& alize::Mixture::create	(	const K &	,
		const unsigned long	dc,
		const	DistribType,
		const String &	id,
		const unsigned long	vectSize
	)		`[static]`

virtual MixtureStat& alize::Mixture::createNewMixtureStatObject	(	const K &	,
		StatServer &	ss,
		const Config &
	)		const `[pure virtual]`

Internal usage

Implemented in alize::MixtureGD, and alize::MixtureGF.

Mixture& alize::Mixture::duplicate	(	const K &	,
		DuplDistrib
	)		const

Reimplemented in alize::MixtureGD, and alize::MixtureGF.

void alize::Mixture::equalizeWeights ( )

Set the weights of all distributions to the same value. Sum of the weights equals 1.

Referenced by alize::MixtureGD::MixtureGD(), and alize::MixtureGF::MixtureGF().

virtual String alize::Mixture::getClassName ( ) const [pure virtual]

Returns the name of the class

Returns:: the name of the class of the object as a String

Implements alize::Object.

Implemented in alize::MixtureGD, and alize::MixtureGF.

Distrib& alize::Mixture::getDistrib ( unsigned long index ) const

Returns a distribution.

Parameters:

index position of the distribution

Returns:: a reference to the distribution

Exceptions:

IndexOutOfBoundsException

Reimplemented in alize::MixtureGD, and alize::MixtureGF.

Referenced by alize::MixtureGF::operator==(), and alize::MixtureGD::operator==().

unsigned long alize::Mixture::getDistribCount ( ) const

Returns the number of distribution

Returns:: the number of distribution

Referenced by alize::MixtureGD::MixtureGD(), alize::MixtureGF::MixtureGF(), alize::MixtureGF::operator==(), alize::MixtureGD::operator==(), alize::MixtureGF::toString(), and alize::MixtureGD::toString().

String alize::Mixture::getId ( ) const

Returns the identifier of the mixture

Returns:: a string that identify the mixture

Referenced by alize::Distrib::toString().

Distrib** alize::Mixture::getTabDistrib ( ) const

Returns a pointer to the vector of distribution pointers

Returns:: a pointer to the first value of the internal vector

Warning:: Fast but dangerous ! Use preferably getDistrib() and setDistrib()

DoubleVector& alize::Mixture::getTabWeight ( )

Returns a reference to the weight vector

Returns:: a reference to the weight vector

const DoubleVector& alize::Mixture::getTabWeight ( ) const

virtual DistribType alize::Mixture::getType ( ) const [pure virtual]

Implemented in alize::MixtureGD, and alize::MixtureGF.

unsigned long alize::Mixture::getVectSize ( ) const

Returns the dimension of the distributions

Returns:: the dimension of the distributions

bool alize::Mixture::operator!= ( const Mixture & ) const

virtual Mixture& alize::Mixture::operator= ( const Mixture & m ) [pure virtual]

Copy data members of a mixture in this mixture. Does not copy the identifier.

Exceptions:

Exception if the dimensions or the numbers of distributions does not match or if the types are not the same or other reasons

Implemented in alize::MixtureGD, and alize::MixtureGF.

virtual bool alize::Mixture::operator== ( const Mixture & ) const [pure virtual]

Implemented in alize::MixtureGD, and alize::MixtureGF.

void alize::Mixture::removeAllDistrib ( const K & )

virtual void alize::Mixture::reset ( ) [virtual]

Reset the mixture : set all distribution weights to 0.0 and call the method reset() of each distribution.
See Distrib::reset()

void alize::Mixture::save	(	const String &	n,
		const Config &	c
	)		const

Saves a mixture to a file

Parameters:

n	the name of the file
c	the configuration to use

Exceptions:

IOException	if an I/O error occurs
FileNotFoundException
InvalidDataException

virtual void alize::Mixture::setDistrib	(	const K &	,
		Distrib &	d,
		unsigned long	index
	)		`[virtual]`

Replace a distribution by an other one

Parameters:

d	Distrib object to add
index	position of the distribution to be replaced

Exceptions:

IndexOutOfBoundsException

Reimplemented in alize::MixtureGD, and alize::MixtureGF.

void alize::Mixture::setId	(	const K &	,
		const String &	id
	)

Sets the identifier of the mixture. Internal usage

Parameters:

id	the identifier

void alize::Mixture::setId ( const String & id )

virtual String alize::Mixture::toString ( ) const [virtual]

This method is frequently overridden in the derived classes. If it is not, it returns the name of the class of the object and the address of the object