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https://issues.apache.org/jira/browse/SPARK-10931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15962141#comment-15962141
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Maciej Szymkiewicz commented on SPARK-10931:
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[~vlad.feinberg] It is worth noting that without {{parent}} some features (like
{{CrossValidator}} or {{TrainValidationSplit}}) are crippled.
> PySpark ML Models should contain Param values
> ---------------------------------------------
>
> Key: SPARK-10931
> URL: https://issues.apache.org/jira/browse/SPARK-10931
> Project: Spark
> Issue Type: Improvement
> Components: ML, PySpark
> Reporter: Joseph K. Bradley
>
> PySpark spark.ml Models are generally wrappers around Java objects and do not
> even contain Param values. This JIRA is for copying the Param values from
> the Estimator to the model.
> This can likely be solved by modifying Estimator.fit to copy Param values,
> but should also include proper unit tests.
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