springs.util
Class IncrementalAverageComputator

java.lang.Object
  |
  +--springs.util.IncrementalAverageComputator

public class IncrementalAverageComputator

extends java.lang.Object

Note: inspired by: http://www.cs.ualberta.ca/~sutton/book/ebook/node19.html Chapter 2.5 "Incremental Implementation" of: "Reinforcement Learning: An Introduction" by: Richard S. Sutton and Andrew G. Barto A Bradford Book The MIT Press Cambridge, Massachusetts London, England

Field Summary

private double	_averageSoFar
private long	_numSamples
private double	_totalAccumulatedValue

Constructor Summary

IncrementalAverageComputator()

Method Summary

void	addSample(double sample) Adds a sample to the average.
double	getAverage() Gets the average so far.
double	getTotalAccumulatedValue() Gets the total accumulated value.

Methods inherited from class java.lang.Object

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

Field Detail

_numSamples

private long _numSamples

_averageSoFar

private double _averageSoFar

_totalAccumulatedValue

private double _totalAccumulatedValue

Constructor Detail

IncrementalAverageComputator

public IncrementalAverageComputator()

Method Detail

addSample

public void addSample(double sample)

Adds a sample to the average.

Parameters:

sample - the sample.

getAverage

public double getAverage()

Gets the average so far.

Returns:

the average.

getTotalAccumulatedValue

public double getTotalAccumulatedValue()

Gets the total accumulated value.

Returns:

the total accumulated value.