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https://issues.apache.org/jira/browse/SPARK-5796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14320026#comment-14320026
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Apache Spark commented on SPARK-5796:
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User 'petro-rudenko' has created a pull request for this issue:
https://github.com/apache/spark/pull/4590
> Do not transform data on a last estimator in Pipeline
> -----------------------------------------------------
>
> Key: SPARK-5796
> URL: https://issues.apache.org/jira/browse/SPARK-5796
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 1.2.1
> Reporter: Peter Rudenko
> Priority: Minor
>
> If it's a last estimator in Pipeline there's no need to transform data, since
> there's no next stage that would consume this data.
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