net.myrrix.common.stats

Class DoubleWeightedMean

java.lang.Object

org.apache.commons.math3.stat.descriptive.AbstractUnivariateStatistic

org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

net.myrrix.common.stats.DoubleWeightedMean

All Implemented Interfaces:

Serializable, org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic, org.apache.commons.math3.stat.descriptive.UnivariateStatistic, org.apache.commons.math3.util.MathArrays.Function

public final class DoubleWeightedMean
extends org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic
implements Serializable

Ported from Mahout WeightedRunningAverage, to use Commons Math3 framework.

This class is not thread-safe.

Since:

1.0

Author:

Sean Owen, Mahout

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DoubleWeightedMean()

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
DoubleWeightedMean	copy()
void	decrement(double datum)
void	decrement(double datum, double weight)
long	getN()
double	getResult()
void	increment(double datum)
void	increment(double datum, double weight)
String	toString()

Methods inherited from class org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

equals, evaluate, evaluate, hashCode, incrementAll, incrementAll

Methods inherited from class org.apache.commons.math3.stat.descriptive.AbstractUnivariateStatistic

evaluate, getData, getDataRef, setData, setData, test, test, test, test

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DoubleWeightedMean

public DoubleWeightedMean()

Method Detail

copy

public DoubleWeightedMean copy()

Specified by:

copy in interface org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic

Specified by:

copy in interface org.apache.commons.math3.stat.descriptive.UnivariateStatistic

Overrides:

copy in class org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

clear

public void clear()

Specified by:

clear in interface org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic

Specified by:

clear in class org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

getResult

public double getResult()

Specified by:

getResult in interface org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic

Specified by:

getResult in class org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

getN

public long getN()

Specified by:

getN in interface org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic

increment

public void increment(double datum)

Specified by:

increment in interface org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic

Specified by:

increment in class org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

increment

public void increment(double datum,
             double weight)

decrement

public void decrement(double datum)

decrement

public void decrement(double datum,
             double weight)

toString

public String toString()

Overrides:

toString in class Object