Narine Kokhlikyan 7c6c692637 [SPARK-12922][SPARKR][WIP] Implement gapply() on DataFrame in SparkR ... ## What changes were proposed in this pull request? gapply() applies an R function on groups grouped by one or more columns of a DataFrame, and returns a DataFrame. It is like GroupedDataSet.flatMapGroups() in the Dataset API. Please, let me know what do you think and if you have any ideas to improve it. Thank you! ## How was this patch tested? Unit tests. 1. Primitive test with different column types 2. Add a boolean column 3. Compute average by a group Author: Narine Kokhlikyan <narine.kokhlikyan@gmail.com> Author: NarineK <narine.kokhlikyan@us.ibm.com> Closes #12836 from NarineK/gapply2.		2016-06-15 21:42:05 -07:00
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daemon.R	[SPARK-10500][SPARKR] sparkr.zip cannot be created if /R/lib is unwritable	2015-11-15 19:29:09 -08:00
worker.R	[SPARK-12922][SPARKR][WIP] Implement gapply() on DataFrame in SparkR	2016-06-15 21:42:05 -07:00