Class PcgMcgXshRs32
- java.lang.Object
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- org.apache.commons.rng.core.BaseProvider
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- org.apache.commons.rng.core.source32.IntProvider
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- org.apache.commons.rng.core.source32.AbstractPcgMcg6432
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- org.apache.commons.rng.core.source32.PcgMcgXshRs32
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- All Implemented Interfaces:
RandomIntSource
,RestorableUniformRandomProvider
,UniformRandomProvider
public class PcgMcgXshRs32 extends AbstractPcgMcg6432
A Permuted Congruential Generator (PCG) that is composed of a 64-bit Multiplicative Congruential Generator (MCG) combined with the XSH-RS (xorshift; random shift) output transformation to create 32-bit output.State size is 64 bits and the period is 262.
- Since:
- 1.3
- See Also:
- PCG, A Family of Better Random Number Generators
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Constructor Summary
Constructors Constructor Description PcgMcgXshRs32(java.lang.Long seed)
Creates a new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected int
transform(long x)
Transform the 64-bit state of the generator to a 32-bit output.-
Methods inherited from class org.apache.commons.rng.core.source32.AbstractPcgMcg6432
getStateInternal, next, setStateInternal
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Methods inherited from class org.apache.commons.rng.core.source32.IntProvider
nextBoolean, nextBytes, nextBytes, nextBytesFill, nextDouble, nextInt, nextLong, resetCachedState
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Methods inherited from class org.apache.commons.rng.core.BaseProvider
checkIndex, checkStateSize, composeStateInternal, extendSeed, extendSeed, fillState, fillState, restoreState, saveState, splitStateInternal, toString
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Method Detail
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transform
protected int transform(long x)
Transform the 64-bit state of the generator to a 32-bit output. The transformation function shall vary with respect to different generators.- Specified by:
transform
in classAbstractPcgMcg6432
- Parameters:
x
- State.- Returns:
- the output
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