org.apache.commons.math.stat.clustering

Enum KMeansPlusPlusClusterer.EmptyClusterStrategy

java.lang.Object

java.lang.Enum<KMeansPlusPlusClusterer.EmptyClusterStrategy>

org.apache.commons.math.stat.clustering.KMeansPlusPlusClusterer.EmptyClusterStrategy

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<KMeansPlusPlusClusterer.EmptyClusterStrategy>

Enclosing class:

KMeansPlusPlusClusterer<T extends Clusterable<T>>

public static enum KMeansPlusPlusClusterer.EmptyClusterStrategy
extends java.lang.Enum<KMeansPlusPlusClusterer.EmptyClusterStrategy>

Strategies to use for replacing an empty cluster.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ERROR Generate an error.
FARTHEST_POINT Create a cluster around the point farthest from its centroid.
LARGEST_POINTS_NUMBER Split the cluster with largest number of points.
LARGEST_VARIANCE Split the cluster with largest distance variance.

Method Summary

Modifier and Type	Method and Description
static KMeansPlusPlusClusterer.EmptyClusterStrategy	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static KMeansPlusPlusClusterer.EmptyClusterStrategy[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

LARGEST_VARIANCE

public static final KMeansPlusPlusClusterer.EmptyClusterStrategy LARGEST_VARIANCE

Split the cluster with largest distance variance.

LARGEST_POINTS_NUMBER

public static final KMeansPlusPlusClusterer.EmptyClusterStrategy LARGEST_POINTS_NUMBER

Split the cluster with largest number of points.

FARTHEST_POINT

public static final KMeansPlusPlusClusterer.EmptyClusterStrategy FARTHEST_POINT

Create a cluster around the point farthest from its centroid.

ERROR

public static final KMeansPlusPlusClusterer.EmptyClusterStrategy ERROR

Generate an error.

Method Detail

values

public static KMeansPlusPlusClusterer.EmptyClusterStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (KMeansPlusPlusClusterer.EmptyClusterStrategy c : KMeansPlusPlusClusterer.EmptyClusterStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static KMeansPlusPlusClusterer.EmptyClusterStrategy valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null