Class WPGMCLinkage


  • public class WPGMCLinkage
    extends Linkage
    Weighted Pair Group Method using Centroids (also known as median linkage). The distance between two clusters is the Euclidean distance between their weighted centroids. Only valid for Euclidean distance based proximity matrix.
    Author:
    Haifeng Li
    • Constructor Summary

      Constructors 
      Constructor Description
      WPGMCLinkage​(double[][] proximity)
      Constructor.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void merge​(int i, int j)
      Merge two clusters into one and update the proximity matrix.
      java.lang.String toString()  
      • Methods inherited from class smile.clustering.linkage.Linkage

        d, size
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
    • Constructor Detail

      • WPGMCLinkage

        public WPGMCLinkage​(double[][] proximity)
        Constructor.
        Parameters:
        proximity - the proximity matrix to store the distance measure of dissimilarity. To save space, we only need the lower half of matrix.
    • Method Detail

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object
      • merge

        public void merge​(int i,
                          int j)
        Description copied from class: Linkage
        Merge two clusters into one and update the proximity matrix.
        Specified by:
        merge in class Linkage
        Parameters:
        i - cluster id.
        j - cluster id.