com.threerings.util
Class RunningStats

java.lang.Object
  com.threerings.util.RunningStats

public class RunningStats
extends Object

Calculates live values for the mean, variance and standard deviation of a set of samples. Not thread safe!

Constructor Summary

RunningStats()

Method Summary

void	addSample(double sample) Adds a new sample.
double	getMax() Returns the maximum sample added or Double.NEGATIVE_INFINITY if no samples have been added.
double	getMean()
double	getMin() Returns the minimum sample added or Double.POSITIVE_INFINITY if no samples have been added.
int	getNumSamples()
double	getStandardDeviation()
double	getVariance()

Methods inherited from class java.lang.Object

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

Constructor Detail

RunningStats

public RunningStats()

Method Detail

addSample

public void addSample(double sample)

Adds a new sample.

getMin

public double getMin()

Returns the minimum sample added or Double.POSITIVE_INFINITY if no samples have been added.

getMax

public double getMax()

Returns the maximum sample added or Double.NEGATIVE_INFINITY if no samples have been added.

getVariance

public double getVariance()

getNumSamples

public int getNumSamples()

getMean

public double getMean()

getStandardDeviation

public double getStandardDeviation()