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Posted to issues@commons.apache.org by "Alex Herbert (Jira)" <ji...@apache.org> on 2021/07/07 10:49:00 UTC

[jira] [Reopened] (RNG-150) Update LargeMeanPoissionSampler to use the ZigguratExponentialSampler

     [ https://issues.apache.org/jira/browse/RNG-150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alex Herbert reopened RNG-150:
------------------------------
      Assignee: Alex Herbert

This ZigguratExponentialSampler has been superceded by the modified ziggurat sampler. See RNG-151.

The LargeMeanPoissonSampler should change to use the exponential variant of the modified ziggurat sampler.

> Update LargeMeanPoissionSampler to use the ZigguratExponentialSampler
> ---------------------------------------------------------------------
>
>                 Key: RNG-150
>                 URL: https://issues.apache.org/jira/browse/RNG-150
>             Project: Commons RNG
>          Issue Type: Improvement
>          Components: sampling
>    Affects Versions: 1.3
>            Reporter: Alex Herbert
>            Assignee: Alex Herbert
>            Priority: Trivial
>             Fix For: 1.4
>
>
> The LargeMeanPoissionSampler uses a standard exponential deviate. This can be changed from the AhrensDieterExponentialSampler to the ZigguratExponentialSampler which is 4x faster.
>  



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