spark-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Reza Zadeh <r...@databricks.com>
Subject Re: RowMatrix.multiply() ?
Date Wed, 15 Oct 2014 17:47:43 GMT
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.uiv@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-unsubscribe@spark.apache.org
> For additional commands, e-mail: user-help@spark.apache.org
>
>

Mime
View raw message