Java List std standardDeviation(List list)

Description

Calculates the standard deviation of the numbers in the list.

License

Open Source License

Declaration

public static double standardDeviation(List<Integer> list) 

Method Source Code

//package com.java2s;
/*/*from   www . j a  v a 2s . co  m*/
 * opsu! - an open-source osu! client
 * Copyright (C) 2014-2017 Jeffrey Han
 *
 * opsu! 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.
 *
 * opsu! 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 opsu!.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.List;

public class Main {
    /**
     * Calculates the standard deviation of the numbers in the list.
     */
    public static double standardDeviation(List<Integer> list) {
        float avg = 0f;
        for (int i : list)
            avg += i;
        avg /= list.size();
        float var = 0f;
        for (int i : list)
            var += (i - avg) * (i - avg);
        var /= list.size();
        return Math.sqrt(var);
    }
}

Related

1. getStandardDeviation(List list)
2. getStandardDeviation(List values)
3. getStdDeviation(List numbers)
4. standardDeviation(List data)
5. standardDeviation(List values)
6. standardDeviation(List values, double xbar)
7. standardDeviationDouble(List list, boolean populationStandardDeviation)
8. std(List iNumbers)
9. std(List vector, Double avg)