Package com.chemaxon.clustering.wards

Class LanceWilliamsMerges.Wards

java.lang.Object

com.chemaxon.clustering.wards.LanceWilliamsMerges.Wards

All Implemented Interfaces:

LanceWilliamsMerge

Enclosing class:

LanceWilliamsMerges

public static class LanceWilliamsMerges.Wards
extends Object
implements LanceWilliamsMerge

Ward's minimum variance clustering.

See Also:

• en.wikipedia.org/wiki/Ward's_method

Constructor Summary

Constructors

Constructor	Description
Wards()

Method Summary

Modifier and Type	Method	Description
double	dijk(int ni, int nj, int nk, double dij, double dik, double djk)	Returns the distance of cluster k and the cluster resulted from merging cluster i and j.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Wards

public Wards()

Method Details

dijk

public double dijk(int ni,
 int nj,
 int nk,
 double dij,
 double dik,
 double djk)

Description copied from interface: LanceWilliamsMerge

Returns the distance of cluster k and the cluster resulted from merging cluster i and j.

Specified by:

dijk in interface LanceWilliamsMerge

Parameters:

ni - Size of cluster i to be merged

nj - Size of cluster j to be merged

nk - Size of cluster k

dij - Distance of clusters i and j

dik - Distance of clusters i and k

djk - Distance of clusters j and k

Returns:

Distance of cluster k and cluster i-j merged

toString

public String toString()

Overrides:

toString in class Object