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https://issues.apache.org/jira/browse/SPARK-7424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14701753#comment-14701753
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Joseph K. Bradley commented on SPARK-7424:
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I'm changing the target to 1.6. It's not critical, though not having this
patch means users won't be able to use Pipelines for some classification tasks
very easily. But there are a lot of attribute cleanups to do for 1.6, and this
patch would already conflict with some changes (in SQL) which have been merged
into master but not branch-1.5.
> spark.ml classification, regression abstractions should add metadata to
> output column
> -------------------------------------------------------------------------------------
>
> Key: SPARK-7424
> URL: https://issues.apache.org/jira/browse/SPARK-7424
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Joseph K. Bradley
> Assignee: Joseph K. Bradley
>
> Update ClassificationModel, ProbabilisticClassificationModel prediction to
> include numClasses in output column metadata.
> Update RegressionModel to specify output column metadata as well.
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