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From Reza Zadeh <r...@databricks.com>
Subject Re: RowMatrix.multiply() ?
Date Fri, 09 Jan 2015 20:34:22 GMT
Yes that is the correct JIRA. It should make it to 1.3.
Best,
Reza

On Fri, Jan 9, 2015 at 11:13 AM, Adrian Mocanu <amocanu@verticalscope.com>
wrote:

>  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:reza@databricks.com]
> *Sent:* October-15-14 1:48 PM
> *To:* ll
> *Cc:* user@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.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!
>
>
>
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>
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