computations
A*b
and
A^T*c
I don't think this is possible without being able to transpose a rowmatrix. Am
I correct?
Thanks,
Alex
From: Reza Zadeh r...@databricks.com
Sent: Monday, January 12, 2015 1:58 PM
To: Alex Minnaar
Cc: u...@spark.incubator.apache.org
Subject: Re: RowMatrix
I have a rowMatrix on which I want to perform two multiplications. The first
is a right multiplication with a local matrix which is fine. But after that I
also wish to right multiply the transpose of my rowMatrix with a different
local matrix. I understand that there is no functionality to
able to transpose a rowmatrix. Am
I correct?
Thanks,
Alex
From: Reza Zadeh r...@databricks.com
Sent: Monday, January 12, 2015 1:58 PM
To: Alex Minnaar
Cc: u...@spark.incubator.apache.org
Subject: Re: RowMatrix multiplication
As you mentioned, you can perform
...@spark.incubator.apache.org
Subject: Re: RowMatrix multiplication
Yes you are correct, to do it with existing operations you would need a
transpose on rowmatrix.
However, you can fairly easily perform the operation manually by doing a join
(if the c vector is an RDD) or broadcasting c (if the c vector is small enough
