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https://issues.apache.org/jira/browse/SPARK-13388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15153950#comment-15153950
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Apache Spark commented on SPARK-13388:
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User 'yinxusen' has created a pull request for this issue:
https://github.com/apache/spark/pull/11266

> PySpark Pipeline and PipelineModel should take advantages of its Scala 
> companion
> --------------------------------------------------------------------------------
>
>                 Key: SPARK-13388
>                 URL: https://issues.apache.org/jira/browse/SPARK-13388
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark
>            Reporter: Xusen Yin
>            Priority: Minor
>
> Pipeline and PipelineModel in PySpark, unlike other estimators and models, 
> are implemented in Python side, which makes it difficult to reuse new methods 
> like save/load of their Scala companions and bring maintenance costs. To 
> utilize current and upcoming new features, we should refactor it similar with 
> other estimators/models in PySpark to call its Scala implementation.



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