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https://issues.apache.org/jira/browse/MAHOUT-1005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269087#comment-13269087
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Ted Dunning commented on MAHOUT-1005:
-------------------------------------
Jake,
Yes. The unit test used to pass. The problem was a transcription error on my
part. I was testing the entire diagonal and should have been testing a
shortening part of that diagonal.
That problem is now tested and fixed. We should be good to go.
Btw... relative to preserving the general form of the code, I could see from
the Colt code that it was derived from the same source. That gave me a bit
more confidence that the new version would behave similarly. These numerical
codes live forever.
> Nuke Colt math functions that remain untested - The Matrix edition
> ------------------------------------------------------------------
>
> Key: MAHOUT-1005
> URL: https://issues.apache.org/jira/browse/MAHOUT-1005
> Project: Mahout
> Issue Type: Bug
> Components: Math
> Affects Versions: 0.5, 0.6
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Fix For: 0.7
>
> Attachments: MAHOUT-1005.patch
>
>
> We are down to very few references to Colt's matrix capabilities.
> I have implemented a new eigen-solver (with tests) and updated the Lanczos
> code to use it. I also have nuked all of the DoubleMatrix*d and related
> classes and consolidated several others.
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