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https://issues.apache.org/jira/browse/SPARK-9073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley resolved SPARK-9073.
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Resolution: Fixed
Fix Version/s: 1.5.0
Issue resolved by pull request 7447
[https://github.com/apache/spark/pull/7447]
> spark.ml Models copy() should call setParent when there is a parent
> -------------------------------------------------------------------
>
> Key: SPARK-9073
> URL: https://issues.apache.org/jira/browse/SPARK-9073
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 1.5.0
> Reporter: Joseph K. Bradley
> Assignee: Kai Sasaki
> Priority: Minor
> Fix For: 1.5.0
>
>
> Examples with this mistake include:
> *
> [https://github.com/apache/spark/blob/9716a727fb2d11380794549039e12e53c771e120/mllib/src/main/scala/org/apache/spark/ml/classification/DecisionTreeClassifier.scala#L119]
> *
> [https://github.com/apache/spark/blob/9716a727fb2d11380794549039e12e53c771e120/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala#L220]
> Whomever writes a PR for this JIRA should check all spark.ml Model's copy()
> methods and set copy's {{Model.parent}} when available. Also verify in unit
> tests (possibly in a standard method checking Models to share code).
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