[jira] [Updated] (SPARK-15202) add dapplyCollect() method for DataFrame in SparkR

["Sun Rui (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-15202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sun Rui updated SPARK-15202:
----------------------------
    Issue Type: Sub-task  (was: New Feature)
        Parent: SPARK-6817

> add dapplyCollect() method for DataFrame in SparkR
> --------------------------------------------------
>
>                 Key: SPARK-15202
>                 URL: https://issues.apache.org/jira/browse/SPARK-15202
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SparkR
>    Affects Versions: 1.6.1
>            Reporter: Sun Rui
>
> dapplyCollect() applies an R function on each partition of a SparkDataFrame and collects the result back to R as a data.frame.
> The signature of dapplyCollect() is as follows:
> {code}
>   dapplyCollect(df, function(ldf) {...})
> {code}
> R function input: local data.frame from the partition on local node
> R function output: local data.frame



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