euklidiandistancemeasure.java

著名的开源仿真软件yale

package edu.udo.cs.yale.operator.clusterer.upgma;

import edu.udo.cs.yale.example.Example;

public class EuklidianDistanceMeasure extends DistanceMeasure {

    public double calculateDistance(Example e1, Example e2) {
	double sum = 0;
	for (int i = 0; i < e1.getNumberOfAttributes(); i++) {
	    double d = e1.getValue(i) - e2.getValue(i);
	    sum += d*d;
	}
	return Math.sqrt(sum);
    }

}