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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/12/27 19:02:49 UTC

[jira] [Commented] (SPARK-12531) Add median and mode to Summary statistics

    [ https://issues.apache.org/jira/browse/SPARK-12531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15072196#comment-15072196 ] 

Sean Owen commented on SPARK-12531:
-----------------------------------

Those are non-trivial to compute exactly; unlike moments, they can't be computed from a couple summary statistics. I am not sure this can be added to the generic object, no. Is it valuable enough for an additional implementation?

> Add median and mode to Summary statistics
> -----------------------------------------
>
>                 Key: SPARK-12531
>                 URL: https://issues.apache.org/jira/browse/SPARK-12531
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.5.2
>            Reporter: Gaurav Kumar
>            Priority: Minor
>
> Summary statistics should also include calculating median and mode in addition to mean, variance and others.



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