at.tuwien.ifs.somtoolbox.visualization.clustering
Class AbstractWardsLinkageTreeBuilder
java.lang.Object
at.tuwien.ifs.somtoolbox.visualization.clustering.TreeBuilder
at.tuwien.ifs.somtoolbox.visualization.clustering.AbstractWardsLinkageTreeBuilder
- Direct Known Subclasses:
- WardsLinkageTreeBuilder, WardsLinkageTreeBuilderAll
public abstract class AbstractWardsLinkageTreeBuilder
- extends TreeBuilder
- Version:
- $Id: AbstractWardsLinkageTreeBuilder.java 3583 2010-05-21 10:07:41Z mayer $
- Author:
- Rudolf Mayer
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
AbstractWardsLinkageTreeBuilder
public AbstractWardsLinkageTreeBuilder()
calcESSincrease
protected double calcESSincrease(ClusterNode n1,
ClusterNode n2)
- Calculates the increase of the Error Sum of Squares if the two Clusters are united. To get the "real" Error Sum
of Squares increase one must take the square root of the returned value. This step is left out of here to save
computation time, as it changes nothing in the order of the distances if this calculation is left out for all
distances.
- Returns:
- the 'distance' value