tubes2.myClusterers.EuclideanDistance.java Source code

Introduction

Here is the source code for tubes2.myClusterers.EuclideanDistance.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package tubes2.myClusterers;

import weka.core.Instance;

/**
 *
 * @author nim_13512501
 */
public class EuclideanDistance implements DistanceFunction {

    @Override
    public double distanceOf(Instance a, Instance b) throws Exception {
        if (a.numAttributes() != b.numAttributes())
            throw new Exception("number of attributes doesn't match");
        double sumSquares = 0;
        for (int i = 0; i < a.numAttributes(); i++) {
            double Error = a.value(i) - b.value(i);
            sumSquares += Error * Error;
        }
        return Math.sqrt(sumSquares);
    }

}