moa.cluster

Class Cluster

java.lang.Object

moa.AbstractMOAObject

moa.cluster.Cluster

All Implemented Interfaces:

Serializable, MOAObject

Direct Known Subclasses:

SphereCluster

public abstract class Cluster
extends AbstractMOAObject

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Cluster()

Method Summary

Methods

Modifier and Type	Method and Description
abstract double[]	getCenter()
protected void	getClusterSpecificInfo(ArrayList<String> infoTitle, ArrayList<String> infoValue)
void	getDescription(StringBuilder sb, int i) Returns a string representation of this object.
double	getGroundTruth()
double	getId()
abstract double	getInclusionProbability(weka.core.Instance instance) Returns the probability of the given point belonging to this cluster.
String	getInfo()
String	getMeasureValue(String measureKey)
abstract double	getWeight() Returns the weight of this cluster, not neccessarily normalized.
boolean	isGroundTruth()
abstract weka.core.Instance	sample(Random random) Samples this cluster by returning a point from inside it.
void	setGroundTruth(double truth)
void	setId(double id)
void	setMeasureValue(String measureKey, double value)
void	setMeasureValue(String measureKey, String value)

Methods inherited from class moa.AbstractMOAObject

copy, copy, measureByteSize, measureByteSize, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Cluster

public Cluster()

Method Detail

getCenter

public abstract double[] getCenter()

Returns:

the center of the cluster

getWeight

public abstract double getWeight()

Returns the weight of this cluster, not neccessarily normalized. It could, for instance, simply return the number of points contined in this cluster.

Returns:

the weight

getInclusionProbability

public abstract double getInclusionProbability(weka.core.Instance instance)

Returns the probability of the given point belonging to this cluster.

Parameters:

point -

Returns:

a value between 0 and 1

getDescription

public void getDescription(StringBuilder sb,
                  int i)

Description copied from interface: MOAObject

Returns a string representation of this object. Used in AbstractMOAObject.toString to give a string representation of the object.

Parameters:

sb - the stringbuilder to add the description

i - the number of characters to indent

setId

public void setId(double id)

getId

public double getId()

isGroundTruth

public boolean isGroundTruth()

setGroundTruth

public void setGroundTruth(double truth)

getGroundTruth

public double getGroundTruth()

sample

public abstract weka.core.Instance sample(Random random)

Samples this cluster by returning a point from inside it.

Parameters:

random - a random number source

Returns:

an Instance that lies inside this cluster

setMeasureValue

public void setMeasureValue(String measureKey,
                   String value)

setMeasureValue

public void setMeasureValue(String measureKey,
                   double value)

getMeasureValue

public String getMeasureValue(String measureKey)

getClusterSpecificInfo

protected void getClusterSpecificInfo(ArrayList<String> infoTitle,
                          ArrayList<String> infoValue)

getInfo

public String getInfo()