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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2019/10/08 05:43:16 UTC

[jira] [Resolved] (SPARK-13998) HashingTF should extend UnaryTransformer

     [ https://issues.apache.org/jira/browse/SPARK-13998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-13998.
----------------------------------
    Resolution: Incomplete

> HashingTF should extend UnaryTransformer
> ----------------------------------------
>
>                 Key: SPARK-13998
>                 URL: https://issues.apache.org/jira/browse/SPARK-13998
>             Project: Spark
>          Issue Type: Sub-task
>          Components: ML
>    Affects Versions: 2.0.0
>            Reporter: Jacek Laskowski
>            Priority: Minor
>              Labels: bulk-closed
>
> Currently [HashingTF|https://github.com/apache/spark/blob/master/mllib/src/main/scala/org/apache/spark/ml/feature/HashingTF.scala#L37] extends {{Transformer with HasInputCol with HasOutputCol}}, but there is a helper [UnaryTransformer|https://github.com/apache/spark/blob/master/mllib/src/main/scala/org/apache/spark/ml/Transformer.scala#L79-L80] abstract class for exactly the reason.



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