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https://issues.apache.org/jira/browse/MAHOUT-449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892679#action_12892679
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Hudson commented on MAHOUT-449:
-------------------------------
Integrated in Mahout-Quality #159 (See
[http://hudson.zones.apache.org/hudson/job/Mahout-Quality/159/])
MAHOUT-449 - NegativeBinomial needs fixing
Added test cases for NegativeBinomial and underlying integrals like
incompleteBeta.
Added log case for Gamma.beta(alpha, beta) computation
Tested Gamma.gamma, Gamma.incompleteBeta,
Improved error messages and comments
Normalized variable names for Gamma distribution
Tested Gamma.pdf and cdf
Fixed confused conventions in NegativeBinomial
Added google guava library to dependencies
> negative binomial distribution afflicted by confused conventions
> ----------------------------------------------------------------
>
> Key: MAHOUT-449
> URL: https://issues.apache.org/jira/browse/MAHOUT-449
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Attachments: MAHOUT-449.patch
>
>
> There are several was that the negative binomial distribution can be defined.
> Our current implementation uses all of them with predictable problems
> resulting.
> I have fairly comprehensive test cases and bug fixes that make this right.
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