I’m resurrecting this thread because I’m interested in doing transpose on a RowMatrix. There is this other thread too: http://apache-spark-user-list.1001560.n3.nabble.com/Matrix-multiplication-in-spark-td12562.html Which presents https://issues.apache.org/jira/browse/SPARK-3434 which is still in work at this time. Is this the correct Jira issue for the transpose operation? ETA?
Thanks a lot! -A From: Reza Zadeh [mailto:r...@databricks.com] Sent: October-15-14 1:48 PM To: ll Cc: u...@spark.incubator.apache.org Subject: Re: RowMatrix.multiply() ? Hi, We are currently working on distributed matrix operations. Two RowMatrices cannot be currently multiplied together. Neither can be they be added. They functionality will be added soon. You can of course achieve this yourself by using IndexedRowMatrix and doing one join per operation you requested. Best, Reza On Wed, Oct 15, 2014 at 8:50 AM, ll <duy.huynh....@gmail.com<mailto:duy.huynh....@gmail.com>> wrote: hi.. it looks like RowMatrix.multiply() takes a local Matrix as a parameter and returns the result as a distributed RowMatrix. how do you perform this series of multiplications if A, B, C, and D are all RowMatrix? ((A x B) x C) x D) thanks! -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/RowMatrix-multiply-tp16509.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org<mailto:user-unsubscr...@spark.apache.org> For additional commands, e-mail: user-h...@spark.apache.org<mailto:user-h...@spark.apache.org>
