public class ChengBetaSampler extends SamplerBase implements ContinuousSampler
R. C. H. Cheng, "Generating beta variates with nonintegral shape parameters", Communications of the ACM, 21, 317-322, 1978.
Constructor and Description |
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ChengBetaSampler(UniformRandomProvider rng,
double alpha,
double beta)
Creates a sampler instance.
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Modifier and Type | Method and Description |
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double |
sample()
Creates a sample.
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String |
toString() |
nextDouble, nextInt, nextInt
public ChengBetaSampler(UniformRandomProvider rng, double alpha, double beta)
rng
- Generator of uniformly distributed random numbers.alpha
- Distribution first shape parameter.beta
- Distribution second shape parameter.public double sample()
sample
in interface ContinuousSampler
public String toString()
toString
in class SamplerBase
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