Java Array Absolute Value absMax(double[] data)

Description

Find the maximum of the absolute values of all elements in the array, ignoring elements that are NaN.

License

Open Source License

Parameter

Parameter	Description
data	a parameter

Declaration

public static double absMax(double[] data) 

Method Source Code

//package com.java2s;
/**//from   www  .j  a v a  2s . c o m
 * Copyright 2004-2006 DFKI GmbH.
 * All Rights Reserved.  Use is subject to license terms.
 * 
 * Permission is hereby granted, free of charge, to use and distribute
 * this software and its documentation without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of this work, and to
 * permit persons to whom this work is furnished to do so, subject to
 * the following conditions:
 * 
 * 1. The code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 * 2. Any modifications must be clearly marked as such.
 * 3. Original authors' names are not deleted.
 * 4. The authors' names are not used to endorse or promote products
 *    derived from this software without specific prior written
 *    permission.
 *
 * DFKI GMBH AND THE CONTRIBUTORS TO THIS WORK DISCLAIM ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DFKI GMBH NOR THE
 * CONTRIBUTORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
 * THIS SOFTWARE.
 */

public class Main {
    /**
     * Find the maximum of the absolute values of all elements in the array, ignoring elements that are NaN.
     * @param data
     * @return
     */
    public static double absMax(double[] data) {
        double max = Double.NaN;
        for (int i = 0; i < data.length; i++) {
            if (Double.isNaN(data[i]))
                continue;
            double abs = Math.abs(data[i]);
            if (Double.isNaN(max) || abs > max)
                max = abs;
        }
        return max;
    }
}

Related

1. abs_sum(int[] data)
2. absAvg(double[] inputArray, int divisions, int cap)
3. absDiff(Double[] a, Double[] b)
4. absMax(double x, double y)
5. absMax(double[] arr)
6. absMax(double[] vector)
7. absMean(double[] arr)
8. absMean(double[] x)
9. absolulteValue(float[][] image)