Java Euclidean Distance euclideanDistance(double[] a, double[] b)

Description

euclidean Distance

License

Apache License

Declaration

public static double euclideanDistance(double[] a, double[] b) 

Method Source Code

//package com.java2s;
/**//from www .j a  va  2  s  . c om
 * Copyright 2013-2015 Pierre Merienne
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    public static double euclideanDistance(double[] a, double[] b) {
        if (a.length != b.length) {
            throw new IllegalArgumentException("The dimensions have to be equal!");
        }

        double sum = 0.0;
        for (int i = 0; i < a.length; i++) {
            sum += Math.pow(a[i] - b[i], 2);
        }

        return Math.sqrt(sum);
    }
}

Related

1. euclideanDist(float[] v1, float[] v2)
2. euclideanDistance(double instance1[], double instance2[])
3. euclideanDistance(double x1, double y1, double x2, double y2)
4. euclideanDistance(double x1, double y1, double x2, double y2)
5. EuclideanDistance(double xSource, double ySource, double xTarget, double yTarget)
6. euclideanDistance(double[] coord1, double[] coord2)
7. euclideanDistance(double[] data, double[] pattern)
8. euclideanDistance(double[] l1, double[] l2, boolean weighted)
9. euclideanDistance(double[] p, double[] q)