Package elki.math.statistics.distribution.estimator.meta

Class TrimmedEstimator<D extends Distribution>

java.lang.Object

elki.math.statistics.distribution.estimator.meta.TrimmedEstimator<D>

Type Parameters:

D - Distribution type

All Implemented Interfaces:

DistributionEstimator<D>

public class TrimmedEstimator<D extends Distribution>
extends java.lang.Object
implements DistributionEstimator<D>

Trimmed wrapper around other estimators. Sorts the data, trims it, then analyzes it using another estimator.

Since:

0.6.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field	Description
private DistributionEstimator<D>	inner	Distribution estimator to use.
private double	trim	Amount of data to trim.

Constructor Summary

Constructors

Constructor	Description
TrimmedEstimator(DistributionEstimator<D> inner, double trim)	Constructor.

Method Summary

Modifier and Type	Method	Description
<A> D	estimate(A data, NumberArrayAdapter<?,A> adapter)	General form of the parameter estimation
java.lang.Class<? super D>	getDistributionClass()	Get the class that is produced by the estimator.
static <A> double[]	toPrimitiveDoubleArray(A data, NumberArrayAdapter<?,A> adapter)	Local copy, see ArrayLikeUtil.toPrimitiveDoubleArray.
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

Field Detail

inner

private DistributionEstimator<D extends Distribution> inner

Distribution estimator to use.

trim

private double trim

Amount of data to trim.

Constructor Detail

TrimmedEstimator

public TrimmedEstimator(DistributionEstimator<D> inner,
                        double trim)

Constructor.

Parameters:

inner - Inner estimator.

trim - Trimming parameter.

Method Detail

estimate

public <A> D estimate(A data,
                      NumberArrayAdapter<?,A> adapter)

Description copied from interface: DistributionEstimator

General form of the parameter estimation

Specified by:

estimate in interface DistributionEstimator<D extends Distribution>

Parameters:

data - Data set

adapter - Number array adapter

Returns:

Estimated distribution

toPrimitiveDoubleArray

public static <A> double[] toPrimitiveDoubleArray(A data,
                                                  NumberArrayAdapter<?,A> adapter)

Local copy, see ArrayLikeUtil.toPrimitiveDoubleArray.

Parameters:

data - Data

adapter - Adapter

Returns:

Copy of the data, as double[]

getDistributionClass

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

Description copied from interface: DistributionEstimator

Get the class that is produced by the estimator.

Specified by:

getDistributionClass in interface DistributionEstimator<D extends Distribution>

Returns:

Distribution class

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object