/*
* Created on Oct 08, 2004
* Created by Alon Rohter
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.core.util.average;
/**
* Implements a simple running average.
*/
public class RunningAverage implements Average {
private long count = 0;
private double sum;
/**
* Create a new running average.
*/
public RunningAverage() {
this.sum = 0;
}
public void reset(){
count = 0;
sum = 0;
}
/**
* Update average and return average-so-far.
*/
public double update(final double newValue) {
sum += newValue;
count++;
return sum / count;
}
/**
* Return average-so-far.
*/
public double getAverage() { return count==0?0:(sum / count ); }
}