TSampler.NormalTSampler

java.lang.Object

org.apache.commons.rng.sampling.distribution.TSampler

org.apache.commons.rng.sampling.distribution.TSampler.NormalTSampler

All Implemented Interfaces:: ContinuousSampler, SharedStateContinuousSampler, SharedStateSampler<SharedStateContinuousSampler>

Enclosing class:: TSampler

private static final class TSampler.NormalTSampler extends TSampler

Sample from a t-distribution using a normal distribution. This is used when the degrees of freedom is extremely large (e.g. > 1e16).

Field Summary

Fields

Modifier and Type

Field

Description

private final NormalizedGaussianSampler

sampler

Underlying normalized Gaussian sampler.
Constructor Summary

Constructors

Constructor

Description

NormalTSampler(UniformRandomProvider rng)
Method Summary

Modifier and Type

Method

Description

double

sample()

Creates a double sample.

TSampler.NormalTSampler

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.distribution.TSampler
nextLong, of, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.commons.rng.sampling.distribution.ContinuousSampler
samples, samples

Field Details
- sampler
  
  private final NormalizedGaussianSampler sampler
  
  Underlying normalized Gaussian sampler.
Constructor Details
- NormalTSampler
  
  NormalTSampler(UniformRandomProvider rng)
  
  Parameters:
  
  rng - Generator of uniformly distributed random numbers.
Method Details
- sample
  
  public double sample()
  
  Creates a double sample.
  
  Returns:
  
  a sample.
- withUniformRandomProvider
  
  public TSampler.NormalTSampler 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.
  
  Specified by:
  
  withUniformRandomProvider in interface SharedStateSampler<SharedStateContinuousSampler>
  
  Specified by:
  
  withUniformRandomProvider in class TSampler
  
  Parameters:
  
  rng - Generator of uniformly distributed random numbers.
  
  Returns:
  
  the sampler