com.aelitis.azureus.core.util.average
Class ExponentialMovingAverage

java.lang.Object
  com.aelitis.azureus.core.util.average.ExponentialMovingAverage

All Implemented Interfaces:

Average

public class ExponentialMovingAverage
extends java.lang.Object
implements Average

Implements an exponential moving average.

Constructor Summary

ExponentialMovingAverage(float weight)
Create a new exponential moving average, using the given smoothing rate weight.

ExponentialMovingAverage(int periods)
Create a new exponential moving average which smooths over the given number of periods.

Method Summary

double	getAverage() Return average-so-far.
void	reset() sets back to start-of-day
double	update(double newValue) Update average and return average-so-far.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExponentialMovingAverage

public ExponentialMovingAverage(int periods)

Create a new exponential moving average which smooths over the given number of periods.

ExponentialMovingAverage

public ExponentialMovingAverage(float weight)

Create a new exponential moving average, using the given smoothing rate weight.

Method Detail

reset

public void reset()

Description copied from interface: Average

sets back to start-of-day

Specified by:

reset in interface Average

update

public double update(double newValue)

Update average and return average-so-far.

Specified by:

update in interface Average

getAverage

public double getAverage()

Return average-so-far.

Specified by:

getAverage in interface Average