de.lmu.ifi.dbs.elki.data.model
Class EMModel<V extends FeatureVector<V,?>>

java.lang.Object
  de.lmu.ifi.dbs.elki.data.model.BaseModel
      de.lmu.ifi.dbs.elki.data.model.MeanModel<V>
          de.lmu.ifi.dbs.elki.data.model.EMModel<V>

Type Parameters:

V - Vector type

All Implemented Interfaces:

Model, TextWriteable

public class EMModel<V extends FeatureVector<V,?>>
extends MeanModel<V>

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

Field Summary

private Matrix

covarianceMatrix Cluster covariance matrix

Constructor Summary

EMModel(V mean, Matrix covarianceMatrix)
Constructor.

Method Summary

Matrix	getCovarianceMatrix()
void	setCovarianceMatrix(Matrix covarianceMatrix)
void	writeToText(TextWriterStream out, String label) Implementation of TextWriteable interface.

Methods inherited from class de.lmu.ifi.dbs.elki.data.model.MeanModel

getMean, setMean

Methods inherited from class java.lang.Object

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

Field Detail

covarianceMatrix

private Matrix covarianceMatrix

Cluster covariance matrix

Constructor Detail

EMModel

public EMModel(V mean,
               Matrix covarianceMatrix)

Constructor.

Parameters:

mean - Mean vector

covarianceMatrix - Covariance matrix

Method Detail

writeToText

public void writeToText(TextWriterStream out,
                        String label)

Description copied from class: MeanModel

Implementation of TextWriteable interface.

Specified by:

writeToText in interface TextWriteable

Overrides:

writeToText in class MeanModel<V extends FeatureVector<V,?>>

Parameters:

out - Output steam

label - Optional label to prefix

getCovarianceMatrix

public Matrix getCovarianceMatrix()

Returns:

covariance matrix

setCovarianceMatrix

public void setCovarianceMatrix(Matrix covarianceMatrix)

Parameters:

covarianceMatrix - covariance matrix