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https://issues.apache.org/jira/browse/MAHOUT-812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115465#comment-13115465
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Ted Dunning commented on MAHOUT-812:
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Sounds right to handle the labels.
> Enhance ConfusionMatrix to be a MatrixWritable (enhances MatrixWritable to
> pickle labels)
> -----------------------------------------------------------------------------------------
>
> Key: MAHOUT-812
> URL: https://issues.apache.org/jira/browse/MAHOUT-812
> Project: Mahout
> Issue Type: Improvement
> Reporter: Lance Norskog
> Priority: Minor
> Fix For: 0.6
>
> Attachments: MAHOUT-812.patch
>
>
> ConfusionMatrix does not support Writable. This patch adds that feature.
> ConfusionMatrix is a subclass of MatrixWritable.
> Since ConfusionMatrix is somewhat less than useful without the row/column
> labels, and MatrixWritable does not support writing bindings (it only saves
> numbers), this patch fixes both.
> Includes unit test for ConfusionMatrix (previously missing) which includes
> exercise of MatrixWritable support for numbers and labels. (There is no
> independent unit test for MatrixWritable.)
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