Java stddev stddev(double sum, double sqSum, int numberValues)

Here you can find the source of stddev(double sum, double sqSum, int numberValues)

Description

stddev

License

Open Source License

Parameter

Parameter Description
sum - sum of values
sqSum - sum of the square values
numberValues a parameter

Declaration

public static double stddev(double sum, double sqSum, int numberValues) 

Method Source Code

//package com.java2s;
/*//from   w w  w. ja va 2 s .  c o m
 * Copyright (c) 2004-2015 Universidade do Porto - Faculdade de Engenharia
 * Laborat?rio de Sistemas e Tecnologia Subaqu?tica (LSTS)
 * All rights reserved.
 * Rua Dr. Roberto Frias s/n, sala I203, 4200-465 Porto, Portugal
 *
 * This file is part of Neptus, Command and Control Framework.
 *
 * Commercial Licence Usage
 * Licencees holding valid commercial Neptus licences may use this file
 * in accordance with the commercial licence agreement provided with the
 * Software or, alternatively, in accordance with the terms contained in a
 * written agreement between you and Universidade do Porto. For licensing
 * terms, conditions, and further information contact lsts@fe.up.pt.
 *
 * European Union Public Licence - EUPL v.1.1 Usage
 * Alternatively, this file may be used under the terms of the EUPL,
 * Version 1.1 only (the "Licence"), appearing in the file LICENSE.md
 * included in the packaging of this file. You may not use this work
 * except in compliance with the Licence. Unless required by applicable
 * law or agreed to in writing, software distributed under the Licence is
 * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the Licence for the specific
 * language governing permissions and limitations at
 * https://www.lsts.pt/neptus/licence.
 *
 * For more information please see <http://lsts.fe.up.pt/neptus>.
 *
 * Author: hfq
 * Jun 21, 2013
 */

public class Main {
    /**
     * 
     * @param sum - sum of values
     * @param sqSum - sum of the square values
     * @param numberValues
     * @return
     */
    public static double stddev(double sum, double sqSum, int numberValues) {
        double variance = (sqSum - (sum * sum) / numberValues) / (numberValues - 1);
        return Math.sqrt(variance);
    }
}

Related

  1. std(float[][] arr)
  2. std(long[] array)
  3. stdarr(int[] a, double avg)
  4. stddev(Collection a)
  5. stdDev(Collection coll)
  6. stddev(double[] a)
  7. stddev(double[] arr)
  8. stdDev(double[] array)
  9. stdDev(double[] data)