[ 
https://issues.apache.org/jira/browse/MATH-1327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15203575#comment-15203575
 ] 

Gilles commented on MATH-1327:
------------------------------

Reports available in branch "feature-MATH-1335".

> Assessment of the quality of the random number generators
> ---------------------------------------------------------
>
>                 Key: MATH-1327
>                 URL: https://issues.apache.org/jira/browse/MATH-1327
>             Project: Commons Math
>          Issue Type: Sub-task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Minor
>              Labels: correctness, documentation
>
> For some of the RNGs implemented in CM, a list of reference values (i.e. a 
> sequence of numbers produced from using a certain seed) are provided by the 
> algorithm's author (this is the case for "MersenneTwister").
> When available, a unit test can show that the CM implementation of the 
> original algorithm is correct (by comparing the sequence produced by the CM 
> code with the reference values).
> When not available, we can compile the reference implementation (usually in 
> C), run it and convert the output (taking  care of Java "signed" vs C 
> "unsigned" types) into a list to be used as above.
> As the intermediate steps could involve bugs, the overly cautious might wish 
> to be offered additional assessments that the CM implementations do produce 
> sequences of uniformly distributed numbers.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to