topic Re: Multiply matrix and vector with proc iml in SAS Enterprise Guide

Multiply matrix and vector with proc iml

x2PSx — Thu, 14 Dec 2017 16:37:58 GMT

Hello,

I am trying to multiply a matrix and a vector with proc iml, but I never used it,.

Basically, I already have the two datasets that I need, one MATRIX and one VECTOR.

I simply want the resulting vector of the multiplication of MATRIX*VECTOR in a new dataset with one variable named RESULT.

Re: Multiply matrix and vector with proc iml

TomKari — Thu, 14 Dec 2017 17:33:59 GMT

Here's an introductory resource to PROC IML that I hope you'll find helpful. Rick also publishes "The DO Loop" blog for SAS.

http://support.sas.com/resources/papers/proceedings13/144-2013.pdf

In the future, I suggest you post IML questions to the Analytics / SAS/IML area. The Enterprise Guide area tends to get questions about the EG interface, and the IML folks don't tend to watch it.

Tom

Re: Multiply matrix and vector with proc iml

x2PSx — Thu, 14 Dec 2017 19:29:01 GMT

Thank you, will do!

Re: Multiply matrix and vector with proc iml

Ksharp — Fri, 15 Dec 2017 14:11:59 GMT

Better post is at IML forum, since it is a IML question.

data matrix;
 set sashelp.class;
 keep age weight height;
run;
data vector;
 do vector=1 to 3;
  output;
 end;
run;

proc iml;
use matrix;
read all var _num_ into matrix;
close;
use vector;
read all var {vector};
close;

result=matrix*vector;

create result var {result};
append;
close;
quit;