Class NaNTransformers

java.lang.Object

org.apache.commons.statistics.descriptive.NaNTransformers

final class NaNTransformers
extends Object

Support for creating NaNTransformer implementations.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	NaNTransformers.ErrorNaNTransformer	A transformer that errors on NaN.
private static final class	NaNTransformers.ExcludeNaNTransformer	A transformer that moves NaN to the upper end of the array.
private static final class	NaNTransformers.IncludeNaNTransformer	A NaN transformer that optionally copies the data.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	NaNTransformers()	No instances.

Method Summary

Modifier and Type	Method	Description
(package private) static double[]	copy(double[] data, int from, int to)	Copy the specified range of data.
(package private) static NaNTransformer	createNaNTransformer(NaNPolicy nanPolicy, boolean copy)	Creates a NaNTransformer based on the nanPolicy and data copy policy.

Methods inherited from class Object

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

Constructor Details

NaNTransformers

private NaNTransformers()

No instances.

Method Details

createNaNTransformer

static NaNTransformer createNaNTransformer(NaNPolicy nanPolicy,
 boolean copy)

Creates a NaNTransformer based on the nanPolicy and data copy policy.

The transformer is thread-safe.

Parameters:

nanPolicy - NaN policy.

copy - Set to true to use a copy of the data.

Returns:

the transformer

copy

static double[] copy(double[] data,
 int from,
 int to)

Copy the specified range of data.

This is a simplification of

invalid reference

Arrays#copyOfRange(double[], int, int)

and does not support range checks or padding of the original input to a longer output.

Parameters:

data - Values.

from - Inclusive start of the range.

to - Exclusive end of the range.

Returns:

the copy