[jira] [Commented] (SPARK-9841) Params.clear needs to be public

["Kai Sasaki (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-9841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14695103#comment-14695103 ] 

Kai Sasaki commented on SPARK-9841:
-----------------------------------

[~josephkb]
Do you have any use case when public clear method is useful? I think parameters must have been set through training. When we want to reset parameter and create model again, it should be only necessary to train estimator again. 
If there are several cases when public clear method is needed, {{set}} method also should be public, I think. Is it correct?

> Params.clear needs to be public
> -------------------------------
>
>                 Key: SPARK-9841
>                 URL: https://issues.apache.org/jira/browse/SPARK-9841
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>            Reporter: Joseph K. Bradley
>
> It is currently impossible to clear Param values once set.  It would be helpful to be able to.



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