edu.ucla.sspace.clustering

Enum HierarchicalAgglomerativeClustering.ClusterLinkage

java.lang.Object

java.lang.Enum<HierarchicalAgglomerativeClustering.ClusterLinkage>

edu.ucla.sspace.clustering.HierarchicalAgglomerativeClustering.ClusterLinkage

All Implemented Interfaces:

Serializable, Comparable<HierarchicalAgglomerativeClustering.ClusterLinkage>

Enclosing class:

HierarchicalAgglomerativeClustering

public static enum HierarchicalAgglomerativeClustering.ClusterLinkage
extends Enum<HierarchicalAgglomerativeClustering.ClusterLinkage>

The method to use when comparing the similarity of two clusters. See here for an example of how the different linkages operate.

Enum Constant Summary

Enum Constants

Enum Constant and Description
COMPLETE_LINKAGE Clusters will be compared based on the total similarity of all pair-wise comparisons of the data points in each.
MEAN_LINKAGE Clusters will be compared using the similarity of the computed mean data point (or centroid) for each cluster.
MEDIAN_LINKAGE Clusters will be compared using the similarity of the computed median data point for each cluster
SINGLE_LINKAGE Clusters will be compared based on the most similar link between them.

Method Summary

Methods

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SINGLE_LINKAGE

public static final HierarchicalAgglomerativeClustering.ClusterLinkage SINGLE_LINKAGE

Clusters will be compared based on the most similar link between them.

COMPLETE_LINKAGE

public static final HierarchicalAgglomerativeClustering.ClusterLinkage COMPLETE_LINKAGE

Clusters will be compared based on the total similarity of all pair-wise comparisons of the data points in each.

MEAN_LINKAGE

public static final HierarchicalAgglomerativeClustering.ClusterLinkage MEAN_LINKAGE

Clusters will be compared using the similarity of the computed mean data point (or centroid) for each cluster. This comparison method is also known as UPGMA.

MEDIAN_LINKAGE

public static final HierarchicalAgglomerativeClustering.ClusterLinkage MEDIAN_LINKAGE

Clusters will be compared using the similarity of the computed median data point for each cluster

Method Detail

values

public static HierarchicalAgglomerativeClustering.ClusterLinkage[] 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 (HierarchicalAgglomerativeClustering.ClusterLinkage c : HierarchicalAgglomerativeClustering.ClusterLinkage.values())
    System.out.println(c);

Returns:

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

valueOf

public static HierarchicalAgglomerativeClustering.ClusterLinkage valueOf(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:

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

NullPointerException - if the argument is null