Java Array Normalize normalize01(float[] array)

Description

normalize

License

Apache License

Declaration

static public void normalize01(float[] array) 

Method Source Code

//package com.java2s;
/**//from  w  w  w .ja va2  s .c  o m
 * Copyright 2015, Emory University
 * 
 * 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 {
    static public void normalize01(float[] array) {
        float min = min(array);
        float div = max(array) - min;

        for (int i = 0; i < array.length; i++)
            array[i] = (array[i] - min) / div;
    }

    static public float min(float[] array) {
        int i, size = array.length;
        float m = array[0];

        for (i = 1; i < size; i++)
            m = Math.min(m, array[i]);

        return m;
    }

    static public double min(double[] array) {
        int i, size = array.length;
        double m = array[0];

        for (i = 1; i < size; i++)
            m = Math.min(m, array[i]);

        return m;
    }

    static public int max(int[] array) {
        int i, size = array.length;
        int m = array[0];

        for (i = 1; i < size; i++)
            m = Math.max(m, array[i]);

        return m;
    }

    static public float max(float[] array) {
        int i, size = array.length;
        float m = array[0];

        for (i = 1; i < size; i++)
            m = Math.max(m, array[i]);

        return m;
    }

    static public double max(double[] array) {
        int i, size = array.length;
        double m = array[0];

        for (i = 1; i < size; i++)
            m = Math.max(m, array[i]);

        return m;
    }
}

Related

1. normalize(int[] values)
2. normalize(int[][][] data, int startX, int startY, int stopX, int stopY, double scale)
3. normalize(long[] v, float[] target)
4. normalize(Number[] array)
5. normalize(String[] slist)
6. normalize2(double[] x)
7. normalize3(float[] result, float[] a)
8. normalizeAndInvertValues(double[] values, double maxValue, double minValue)
9. normalizeArray(double[] array)