Sun Rui created SPARK-15202:
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Summary: add dapplyCollect() method for DataFrame in SparkR
Key: SPARK-15202
URL: https://issues.apache.org/jira/browse/SPARK-15202
Project: Spark
Issue Type: New Feature
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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