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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2018/01/05 19:52:01 UTC

[jira] [Commented] (SPARK-13030) Change OneHotEncoder to Estimator

    [ https://issues.apache.org/jira/browse/SPARK-13030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313760#comment-16313760 ] 

Joseph K. Bradley commented on SPARK-13030:
-------------------------------------------

Merged https://github.com/apache/spark/pull/20132 as follow-up to this

> Change OneHotEncoder to Estimator
> ---------------------------------
>
>                 Key: SPARK-13030
>                 URL: https://issues.apache.org/jira/browse/SPARK-13030
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>    Affects Versions: 1.6.0
>            Reporter: Wojciech Jurczyk
>            Assignee: Liang-Chi Hsieh
>             Fix For: 2.3.0
>
>
> OneHotEncoder should be an Estimator, just like in scikit-learn (http://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.OneHotEncoder.html).
> In its current form, it is impossible to use when number of categories is different between training dataset and test dataset.



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