AhrensDieterExponentialSampler (nosqlbench)

java.lang.Object

org.apache.commons.rng.sampling.distribution.SamplerBase

org.apache.commons.rng.sampling.distribution.AhrensDieterExponentialSampler

All Implemented Interfaces:: ContinuousSampler

public class AhrensDieterExponentialSampler
extends SamplerBase
implements ContinuousSampler

Sampling from an exponential distribution.

Sampling uses UniformRandomProvider.nextDouble().

Since:: 1.0

Constructor Summary

Constructors

Constructor Description

AhrensDieterExponentialSampler(UniformRandomProvider rng, double mean)
Method Summary

Modifier and Type Method Description

double sample()
Creates a sample.

java.lang.String toString()

Methods inherited from class org.apache.commons.rng.sampling.distribution.SamplerBase
nextDouble, nextInt, nextInt, nextLong

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

Constructor Details
- AhrensDieterExponentialSampler
  
  public AhrensDieterExponentialSampler(UniformRandomProvider rng, double mean)
  
  Parameters:
  
  rng - Generator of uniformly distributed random numbers.
  
  mean - Mean of this distribution.
  
  Throws:
  
  java.lang.IllegalArgumentException - if mean <= 0
Method Details
- sample
  
  public double sample()
  
  Creates a sample.
  
  Specified by:
  
  sample in interface ContinuousSampler
  
  Returns:
  
  a sample.
- toString
  
  public java.lang.String toString()
  
  Overrides:
  
  toString in class SamplerBase