weka.core.stats

Class IncrementalQuantileEstimator

java.lang.Object

weka.core.stats.IncrementalQuantileEstimator

All Implemented Interfaces:

weka.core.TechnicalInformationHandler

public class IncrementalQuantileEstimator
extends java.lang.Object
implements weka.core.TechnicalInformationHandler

Version:

$Revision: 10926 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

Constructor Summary

Constructors

Constructor and Description
IncrementalQuantileEstimator() Constructs a new estimator with quantile = 0.5 (i.e.
IncrementalQuantileEstimator(double p) Constructor

Method Summary

Modifier and Type	Method and Description
void	add(double val) Add a new observation
double	getQuantile() Return the current estimate of the quantile
weka.core.TechnicalInformation	getTechnicalInformation()
java.lang.String	globalInfo() Global information about this estimator
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

IncrementalQuantileEstimator

public IncrementalQuantileEstimator()

Constructs a new estimator with quantile = 0.5 (i.e. median)

IncrementalQuantileEstimator

public IncrementalQuantileEstimator(double p)

Constructor

Parameters:

p - the quantile to estimate

Method Detail

globalInfo

public java.lang.String globalInfo()

Global information about this estimator

Returns:

the global information for this estimator

getTechnicalInformation

public weka.core.TechnicalInformation getTechnicalInformation()

Specified by:

getTechnicalInformation in interface weka.core.TechnicalInformationHandler

getQuantile

public double getQuantile()
                   throws java.lang.Exception

Return the current estimate of the quantile

Returns:

the current estimate of the quantile

Throws:

java.lang.Exception - if we have not yet seen 5 values to base the estimate on

add

public void add(double val)

Add a new observation

Parameters:

val - the new observed value

main

public static void main(java.lang.String[] args)