Java Array Min Value min(double[] array)

Description

min

License

Open Source License

Declaration

public static double min(double[] array) 

Method Source Code

//package com.java2s;
/*/*from   w w w. j  a  v  a 2s  . c om*/
 *  Java Information Dynamics Toolkit (JIDT)
 *  Copyright (C) 2012, Joseph T. Lizier
 *  
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    public static double min(double[][] matrix) {
        // double min = 0.0;
        double min = matrix[0][0];
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[i].length; j++) {
                if (Double.isNaN(min) || (matrix[i][j] < min)) {
                    min = matrix[i][j];
                }
            }
        }
        return min;
    }

    public static int min(int[][] matrix) {
        // int min = 0;
        int min = matrix[0][0];
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[i].length; j++) {
                if (matrix[i][j] < min) {
                    min = matrix[i][j];
                }
            }
        }
        return min;
    }

    public static double min(double[] array) {
        return minStartFromIndex(array, 0);
    }

    public static int min(int[] array) {
        // int min = 0;
        int min = array[0];
        for (int i = 0; i < array.length; i++) {
            if (array[i] < min) {
                min = array[i];
            }
        }
        return min;
    }

    /**
     * Works out the minimum value in the matrix in a given column 
     * 
     * @param matrix
     * @param column
     * @return
     */
    public static double min(double[][] matrix, int column) {
        // double min = 0.0;
        // Allow ArrayIndexOutOfBoundsException if matrix is size 0
        double min = matrix[0][column];
        for (int i = 1; i < matrix.length; i++) {
            if (Double.isNaN(min) || (matrix[i][column] < min)) {
                min = matrix[i][column];
            }
        }
        return min;
    }

    /**
     * Works out the minimum value in the matrix in a given column 
     * 
     * @param matrix
     * @param column
     * @return
     */
    public static int min(int[][] matrix, int column) {
        // double min = 0.0;
        // Allow ArrayIndexOutOfBoundsException if matrix is size 0
        int min = matrix[0][column];
        for (int i = 1; i < matrix.length; i++) {
            if (matrix[i][column] < min) {
                min = matrix[i][column];
            }
        }
        return min;
    }

    public static double minStartFromIndex(double[] array, int startFromIndex) {
        // double min = 0.0;
        double min = array[startFromIndex];
        for (int i = startFromIndex; i < array.length; i++) {
            if (Double.isNaN(min) || (array[i] < min)) {
                min = array[i];
            }
        }
        return min;
    }
}

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