Package elki.math.statistics.distribution.estimator

Class WeibullLogMADEstimator

java.lang.Object

elki.math.statistics.distribution.estimator.WeibullLogMADEstimator

All Implemented Interfaces:

DistributionEstimator<WeibullDistribution>, LogMADDistributionEstimator<WeibullDistribution>

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

Parameter estimation via median and median absolute deviation from median (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	WeibullLogMADEstimator.Par	Parameterization class.

Field Summary

Fields

Modifier and Type	Field	Description
static WeibullLogMADEstimator	STATIC	The more robust median based estimator.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	WeibullLogMADEstimator()	Constructor.

Method Summary

Modifier and Type	Method	Description
WeibullDistribution	estimateFromLogMedianMAD(double median, double mad, double shift)	General form of the parameter estimation
java.lang.Class<? super WeibullDistribution>	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.LogMADDistributionEstimator

estimate

Field Detail

STATIC

public static final WeibullLogMADEstimator STATIC

The more robust median based estimator.

Constructor Detail

WeibullLogMADEstimator

private WeibullLogMADEstimator()

Constructor. Private: use static instance!

Method Detail

estimateFromLogMedianMAD

public WeibullDistribution estimateFromLogMedianMAD(double median,
                                                    double mad,
                                                    double shift)

Description copied from interface: LogMADDistributionEstimator

General form of the parameter estimation

Specified by:

estimateFromLogMedianMAD in interface LogMADDistributionEstimator<WeibullDistribution>

Parameters:

median - Median lof log values.

mad - Median absolute deviation from median (in logspace).

shift - Shift offset that was used to avoid negative values.

Returns:

Estimated distribution

getDistributionClass

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

Description copied from interface: DistributionEstimator

Get the class that is produced by the estimator.

Specified by:

getDistributionClass in interface DistributionEstimator<WeibullDistribution>

Returns:

Distribution class

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object