Package elki.data.model

Class EMModel

java.lang.Object

elki.data.model.SimplePrototypeModel<double[]>

elki.data.model.MeanModel

elki.data.model.EMModel

All Implemented Interfaces:

Model, PrototypeModel<double[]>, TextWriteable

public class EMModel
extends MeanModel

Cluster model of an EM cluster, providing a mean and a full covariance Matrix.

Since:

0.2

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field	Description
private double[][]	covarianceMatrix	Cluster covariance matrix

Fields inherited from class elki.data.model.SimplePrototypeModel

prototype

Fields inherited from interface elki.data.model.Model

TYPE

Constructor Summary

Constructors

Constructor	Description
EMModel(double[] mean, double[][] covarianceMatrix)	Constructor.

Method Summary

Modifier and Type	Method	Description
double[][]	getCovarianceMatrix()
void	setCovarianceMatrix(double[][] covarianceMatrix)
java.lang.String	toString()
void	writeToText(TextWriterStream out, java.lang.String label)	Implementation of TextWriteable interface.

Methods inherited from class elki.data.model.MeanModel

getMean, getPrototypeType

Methods inherited from class elki.data.model.SimplePrototypeModel

getPrototype, prototypeToString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

covarianceMatrix

private double[][] covarianceMatrix

Cluster covariance matrix

Constructor Detail

EMModel

public EMModel(double[] mean,
               double[][] covarianceMatrix)

Constructor.

Parameters:

mean - Mean vector

covarianceMatrix - Covariance matrix

Method Detail

writeToText

public void writeToText(TextWriterStream out,
                        java.lang.String label)

Description copied from interface: PrototypeModel

Implementation of TextWriteable interface.

Specified by:

writeToText in interface Model

Specified by:

writeToText in interface PrototypeModel<double[]>

Specified by:

writeToText in interface TextWriteable

Overrides:

writeToText in class SimplePrototypeModel<double[]>

Parameters:

out - Output steam

label - Optional label to prefix

getCovarianceMatrix

public double[][] getCovarianceMatrix()

Returns:

covariance matrix

setCovarianceMatrix

public void setCovarianceMatrix(double[][] covarianceMatrix)

Parameters:

covarianceMatrix - covariance matrix

toString

public java.lang.String toString()

Overrides:

toString in class SimplePrototypeModel<double[]>