Calculates the squared Euclidean distance between two vectors. - Android java.lang

Android examples for java.lang:Math Vector

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Description

Calculates the squared Euclidean distance between two vectors.

Demo Code

/*//from ww w .jav  a 2s .co  m
 * Copyright (C) 2008-2009 The Android Open Source Project
 *
 * 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.
 */
import android.graphics.RectF;
import android.util.Log;
import java.util.ArrayList;
import java.util.Arrays;
import java.io.Closeable;
import java.io.IOException;
import static android.gesture.GestureConstants.*;

public class Main{
    /**
     * Calculates the squared Euclidean distance between two vectors.
     * 
     * @param vector1
     * @param vector2
     * @return the distance
     */
    static float squaredEuclideanDistance(float[] vector1, float[] vector2) {
        float squaredDistance = 0;
        int size = vector1.length;
        for (int i = 0; i < size; i++) {
            float difference = vector1[i] - vector2[i];
            squaredDistance += difference * difference;
        }
        return squaredDistance / size;
    }
}

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