RE: RowMatrix.multiply() ?

2015-01-09 Thread Adrian Mocanu
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.commailto: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!



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Re: RowMatrix.multiply() ?

2015-01-09 Thread Reza Zadeh
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 amoc...@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: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 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.

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 To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
 For additional commands, e-mail: user-h...@spark.apache.org





RowMatrix.multiply() ?

2014-10-15 Thread ll
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.

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