EMModel (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.data.model.SimplePrototypeModel<double[]>
- - elki.data.model.MeanModel
  - - elki.data.model.EMModel

All Implemented Interfaces:

Model, PrototypeModel<double[]>, elki.result.textwriter.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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double[][]`	`getCovarianceMatrix()`
`void`	`setCovarianceMatrix(double[][] covarianceMatrix)`
`java.lang.String`	`toString()`
`void`	`writeToText(elki.result.textwriter.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(elki.result.textwriter.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 elki.result.textwriter.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[]>