Hello, May I know if these is way to implement aggregate function for grouped data in DataFrame? I dug into the doc but didn't find any apart from the UDF functions which applies on a Row. Maybe I have missed something. Thanks.
Justin -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Custom-Aggregate-Function-for-DataFrame-tp22893.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
