Package org.apache.commons.rng.sampling.shape

Class BoxSampler.BoxSampler2D

java.lang.Object

org.apache.commons.rng.sampling.shape.BoxSampler

org.apache.commons.rng.sampling.shape.BoxSampler.BoxSampler2D

All Implemented Interfaces:

ObjectSampler<double[]>, SharedStateObjectSampler<double[]>, SharedStateSampler<SharedStateObjectSampler<double[]>>

Enclosing class:

BoxSampler

private static final class BoxSampler.BoxSampler2D
extends BoxSampler

Sample uniformly from a box in 2D. This is an non-array based specialisation of BoxSampler.BoxSamplerND for performance.

Field Summary

Fields

Modifier and Type	Field	Description
private final double	ax	The x component of bound a.
private final double	ay	The y component of bound a.
private final double	bx	The x component of bound b.
private final double	by	The y component of bound b.

Constructor Summary

Constructors

Constructor	Description
BoxSampler2D(UniformRandomProvider rng, double[] a, double[] b)
BoxSampler2D(UniformRandomProvider rng, BoxSampler.BoxSampler2D source)

Method Summary

Modifier and Type	Method	Description
double[]	sample()	Create an object sample.
BoxSampler	withUniformRandomProvider(UniformRandomProvider rng)	Create a new instance of the sampler with the same underlying state using the given uniform random provider as the source of randomness.

Methods inherited from class org.apache.commons.rng.sampling.shape.BoxSampler

createSample, of

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.rng.sampling.ObjectSampler

samples, samples

Field Details

ax

private final double ax

The x component of bound a.

ay

private final double ay

The y component of bound a.

bx

private final double bx

The x component of bound b.

by

private final double by

The y component of bound b.

Constructor Details

BoxSampler2D

BoxSampler2D(UniformRandomProvider rng,
 double[] a,
 double[] b)

Parameters:

rng - Source of randomness.

a - Bound a.

b - Bound b.

BoxSampler2D

BoxSampler2D(UniformRandomProvider rng,
 BoxSampler.BoxSampler2D source)

Parameters:

rng - Source of randomness.

source - Source to copy.

Method Details

sample

public double[] sample()

Description copied from interface: ObjectSampler

Create an object sample.

Specified by:

sample in interface ObjectSampler<double[]>

Specified by:

sample in class BoxSampler

Returns:

a random Cartesian coordinate within the box.

withUniformRandomProvider

public BoxSampler withUniformRandomProvider(UniformRandomProvider rng)

Description copied from class: BoxSampler

Create a new instance of the sampler with the same underlying state using the given uniform random provider as the source of randomness.

Specified by:

withUniformRandomProvider in interface SharedStateSampler<SharedStateObjectSampler<double[]>>

Specified by:

withUniformRandomProvider in class BoxSampler

Parameters:

rng - Generator of uniformly distributed random numbers.

Returns:

the sampler