Package elki.math.statistics.distribution.estimator

Class RayleighMADEstimator

java.lang.Object

elki.math.statistics.distribution.estimator.RayleighMADEstimator

All Implemented Interfaces:

DistributionEstimator<RayleighDistribution>, MADDistributionEstimator<RayleighDistribution>

@Reference(authors="D. J. Olive",
           title="Applied Robust Statistics",
           booktitle="",
           url="http://lagrange.math.siu.edu/Olive/preprints.htm",
           bibkey="books/Olive08")
public class RayleighMADEstimator
extends java.lang.Object
implements MADDistributionEstimator<RayleighDistribution>

Estimate the parameters of a RayleighDistribution using the MAD.

Reference:

D. J. Olive
Applied Robust Statistics
Preprint, University of Minnesota

Since:

0.6.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RayleighMADEstimator.Par	Parameterization class.

Field Summary

Fields

Modifier and Type	Field	Description
private static double	F1	See reference for the derivation of this constants.
private static double	F2	See reference for the derivation of this constants.
static RayleighMADEstimator	STATIC	Static instance.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RayleighMADEstimator()	Constructor.

Method Summary

Modifier and Type	Method	Description
RayleighDistribution	estimateFromMedianMAD(double median, double mad)	General form of the parameter estimation
java.lang.Class<? super RayleighDistribution>	getDistributionClass()	Get the class that is produced by the estimator.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.math.statistics.distribution.estimator.DistributionEstimator

estimate

Methods inherited from interface elki.math.statistics.distribution.estimator.MADDistributionEstimator

estimate

Field Detail

STATIC

public static final RayleighMADEstimator STATIC

Static instance.

F1

private static final double F1

See reference for the derivation of this constants.

See Also:

Constant Field Values

F2

private static final double F2

See reference for the derivation of this constants.

See Also:

Constant Field Values

Constructor Detail

RayleighMADEstimator

private RayleighMADEstimator()

Constructor. Private: use static instance!

Method Detail

estimateFromMedianMAD

public RayleighDistribution estimateFromMedianMAD(double median,
                                                  double mad)

Description copied from interface: MADDistributionEstimator

General form of the parameter estimation

Specified by:

estimateFromMedianMAD in interface MADDistributionEstimator<RayleighDistribution>

Parameters:

median - Median value

mad - Median absolute deviation from median

Returns:

Estimated distribution

getDistributionClass

public java.lang.Class<? super RayleighDistribution> getDistributionClass()

Description copied from interface: DistributionEstimator

Get the class that is produced by the estimator.

Specified by:

getDistributionClass in interface DistributionEstimator<RayleighDistribution>

Returns:

Distribution class

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object