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https://issues.apache.org/jira/browse/SPARK-9963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14949940#comment-14949940
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Luvsandondov Lkhamsuren commented on SPARK-9963:
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Thanks for the tip. I fixed the original PR too.
> ML RandomForest cleanup: Move predictNodeIndex to LearningNode
> --------------------------------------------------------------
>
> Key: SPARK-9963
> URL: https://issues.apache.org/jira/browse/SPARK-9963
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Joseph K. Bradley
> Priority: Trivial
> Labels: starter
>
> (updated form original description)
> Move ml.tree.impl.RandomForest.predictNodeIndex to LearningNode.
> We need to keep it as a separate method from Node.predictImpl because (a) it
> needs to operate on binned features and (b) it needs to return the node ID,
> not the node (because it can return the ID for nodes which do not yet exist).
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