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Posted to issues@spark.apache.org by "zhengruifeng (JIRA)" <ji...@apache.org> on 2017/01/05 08:17:58 UTC

[jira] [Commented] (SPARK-17934) Support percentile scale in ml.feature

    [ https://issues.apache.org/jira/browse/SPARK-17934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15800715#comment-15800715 ] 

zhengruifeng commented on SPARK-17934:
--------------------------------------

This seems blocked by SPARK-14352

> Support percentile scale in ml.feature
> --------------------------------------
>
>                 Key: SPARK-17934
>                 URL: https://issues.apache.org/jira/browse/SPARK-17934
>             Project: Spark
>          Issue Type: New Feature
>          Components: ML
>            Reporter: Lei Wang
>
> Percentile scale is often used in feature scale.
> In my project, I need to use this scaler.
> Compared to MinMaxScaler, PercentileScaler will not produce unstable result due to anomaly large value.
> About percentile scale, refer to https://en.wikipedia.org/wiki/Percentile_rank



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