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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-817) Multivariate Normal Mixture Model Fitting by Expectation Maximization
Date Tue, 19 Mar 2013 11:01:15 GMT

    [ https://issues.apache.org/jira/browse/MATH-817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13606232#comment-13606232
] 

Gilles commented on MATH-817:
-----------------------------

Hi Jared.

Thanks a lot for the changes; that's a great improvement in readability.

However, I think that there remains some little formatting to correct, in order to comply
with the CM style. Did you run "CheckStyle"?

Also, I wonder whether this class should not belong in another package (I would suggest "o.a.c.m.distribution.fitting").
Could you raise the question on the ML?

                
> Multivariate Normal Mixture Model Fitting by Expectation Maximization
> ---------------------------------------------------------------------
>
>                 Key: MATH-817
>                 URL: https://issues.apache.org/jira/browse/MATH-817
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Jared Becksfort
>            Priority: Minor
>         Attachments: math_817.patch, MultivariateNormalMixtureExpectationMaximizationFitter.java,
MultivariateNormalMixtureExpectationMaximizationFitterTest.java
>
>   Original Estimate: 1m
>  Remaining Estimate: 1m
>
> I will submit a class for fitting Multivariate Normal Mixture Models using Expectation
Maximization.
> > Hello,
> >
> > I have implemented some classes for multivariate Normal distributions, multivariate
normal mixture models, and an expectation maximization fitting class for the mixture model.
 I would like to submit it to Apache Commons Math.  I still have some touching up to do so
that they fit the style guidelines and implement the correct interfaces.  Before I do so,
I thought I would at least ask if the developers of the project are interested in me submitting
them.
> >
> > Thanks,
> > Jared Becksfort
> Dear Jared,
> Yes, that would be very nice to have such an addition! Remember to also include unit
tests (refer to the current ones for examples). The best would be to split a submission up
into multiple minor ones, each covering a natural submission (e.g. multivariate Normal distribution
in one submission), and create an issue as described at http://commons.apache.org/math/issue-tracking.html
.
> If you run into any problems, please do not hesitate to ask on this mailing list.
> Cheers, Mikkel.

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