get Mean Vector - Java java.lang

Java examples for java.lang:Math Vector

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Description

get Mean Vector

Demo Code


//package com.java2s;

public class Main {
    /** //from  w  w  w.jav a 2  s  .  com
     * 
     * @param matrix
     * @return
     */
    public static <T> Double[] getMeanVector(T[][] matrix) {

        Double meanVector[] = new Double[matrix[0].length];
        Double sum = 0.0;

        for (int i = 0; i < matrix[i].length; i++) {

            sum = 0.0;

            for (int j = 0; j < matrix.length; j++) {

                sum = sum + (Double) matrix[j][i];
            }

            meanVector[i] = sum / matrix[i].length;
        }

        return meanVector;
    }
}

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