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Posted to issues@spark.apache.org by "Yu Ishikawa (JIRA)" <ji...@apache.org> on 2015/08/17 06:17:46 UTC

[jira] [Commented] (SPARK-10043) Add window functions into SparkR

    [ https://issues.apache.org/jira/browse/SPARK-10043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14698994#comment-14698994 ] 

Yu Ishikawa commented on SPARK-10043:
-------------------------------------

As far as I know, there is no unit testing of the window function in Scala / Python. At least, we should add unit testing in Python.

> Add window functions into SparkR
> --------------------------------
>
>                 Key: SPARK-10043
>                 URL: https://issues.apache.org/jira/browse/SPARK-10043
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SparkR
>            Reporter: Yu Ishikawa
>
> Add window functions as follows in SparkR. I think we should improve {{collect}} function in SparkR.
> - lead
> - cumuDist
> - denseRank
> - lag
> - ntile
> - percentRank
> - rank
> - rowNumber



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