com.illumon.numerics.movingaverages

Class ExponentiallyDecayedSum

java.lang.Object

com.illumon.numerics.movingaverages.ExponentiallyDecayedSum

All Implemented Interfaces:

Serializable

public class ExponentiallyDecayedSum
extends Object
implements Serializable

Created by IntelliJ IDEA. User: dkent Date: Jul 13, 2007 Time: 6:50:01 AM

A sum where the values are decayed at an exponential rate to zero.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ExponentiallyDecayedSum(double decayRate, boolean enableTimestepOutOfOrderException) Creates a new exponentially decayed sum.

Method Summary

Modifier and Type	Method and Description
long	getLastTimestamp()
double	getValue()
void	processDouble(long timestamp, double data)
void	reset()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExponentiallyDecayedSum

public ExponentiallyDecayedSum(double decayRate,
                               boolean enableTimestepOutOfOrderException)

Creates a new exponentially decayed sum.

Parameters:

decayRate - rate in milliseconds to decay the sum.

enableTimestepOutOfOrderException - true to allow an exception to be thrown when timesteps are not sequential.

Method Detail

processDouble

public void processDouble(long timestamp,
                          double data)

getValue

public double getValue()

getLastTimestamp

public long getLastTimestamp()

reset

public void reset()