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From "Jared Becksfort (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MATH-816) Multivariate Normal Mixture Models
Date Wed, 24 Oct 2012 18:50:12 GMT

     [ https://issues.apache.org/jira/browse/MATH-816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jared Becksfort updated MATH-816:
---------------------------------

    Attachment: MixtureMultivariateRealDistributionTest.java
                MixtureMultivariateRealDistribution.java.patch

Gilles,

I am attaching a patch for MixtureMultivariateRealDistribution class that removes the temporary
code and comments.

I am including the plain java file for the test because it was renamed. Running a rename and
patch on my end basically just generated a patch containing the entire file. The new test
file uses the generic code and the modified component seed method.  I added one precondition
test for dimension checking and removed the one that checked for the weight sum to equal one
because your previous changes made it unnecessary.

Please let me know if you need anything else from me for this issue to be resolved.

Jared
                
> Multivariate Normal Mixture Models
> ----------------------------------
>
>                 Key: MATH-816
>                 URL: https://issues.apache.org/jira/browse/MATH-816
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Jared Becksfort
>            Priority: Minor
>             Fix For: 3.2
>
>         Attachments: MixtureMultivariateRealDistribution.java, MixtureMultivariateRealDistribution.java,
MixtureMultivariateRealDistribution.java.patch, MixtureMultivariateRealDistributionTest.java,
MultivariateNormalMixtureModelDistribution.java, MultivariateNormalMixtureModelDistributionTest.java
>
>   Original Estimate: 1m
>  Remaining Estimate: 1m
>
> I will submit a class for Multivariate Normal Mixture Models.  Not sure it will allow
sampling initially.
> > 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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