org.apache.commons.math.stat.descriptive.rank

Class Median

java.lang.Object

org.apache.commons.math.stat.descriptive.AbstractUnivariateStatistic

org.apache.commons.math.stat.descriptive.rank.Percentile

org.apache.commons.math.stat.descriptive.rank.Median

All Implemented Interfaces:

java.io.Serializable, UnivariateStatistic

public class Median
extends Percentile
implements java.io.Serializable

Returns the median of the available values. This is the same as the 50th percentile. See Percentile for a description of the algorithm used.

Note that this implementation is not synchronized. If multiple threads access an instance of this class concurrently, and at least one of the threads invokes the increment() or clear() method, it must be synchronized externally.

Version:

$Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static long	serialVersionUID Serializable version identifier

Constructor Summary

Constructors

Constructor and Description
Median() Default constructor.
Median(Median original) Copy constructor, creates a new Median identical to the original

Method Summary

Methods inherited from class org.apache.commons.math.stat.descriptive.rank.Percentile

copy, copy, evaluate, evaluate, evaluate, evaluate, getQuantile, medianOf3, setData, setData, setQuantile

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

evaluate, evaluate, getData, getDataRef, test, test

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Serializable version identifier

See Also:

Constant Field Values

Constructor Detail

Median

public Median()

Default constructor.

Median

public Median(Median original)

Copy constructor, creates a new Median identical to the original

Parameters:

original - the Median instance to copy