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https://issues.apache.org/jira/browse/SPARK-14681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16641138#comment-16641138
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Dongjoon Hyun commented on SPARK-14681:
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This is reverted on `master` branch, too.
> Provide label/impurity stats for spark.ml decision tree nodes
> -------------------------------------------------------------
>
> Key: SPARK-14681
> URL: https://issues.apache.org/jira/browse/SPARK-14681
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Joseph K. Bradley
> Assignee: Weichen Xu
> Priority: Major
>
> Currently, spark.ml decision trees provide all node info except for the
> aggregated stats about labels and impurities. This task is to provide those
> publicly. We need to choose a good API for it, so we should discuss the
> design on this issue before implementing it.
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