htsjdk.tribble.util

Class MathUtils.RunningStat

java.lang.Object

htsjdk.tribble.util.MathUtils.RunningStat

Enclosing class:

MathUtils

public static class MathUtils.RunningStat
extends java.lang.Object

a class for calculating moving statistics - this class returns the mean, variance, and std dev after accumulating any number of records. taken from http://www.johndcook.com/standard_deviation.html

Constructor Summary

Constructors

Constructor and Description
RunningStat()

Method Summary

Modifier and Type	Method and Description
void	clear()
double	mean()
long	numDataValues()
void	push(double x)
double	standardDeviation()
double	variance()

Methods inherited from class java.lang.Object

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

Constructor Detail

RunningStat

public RunningStat()

Method Detail

push

public void push(double x)

Parameters:

x - the value to add to the running mean and variance

clear

public void clear()

numDataValues

public final long numDataValues()

mean

public final double mean()

variance

public double variance()

standardDeviation

public double standardDeviation()