Date:         Fri, 14 Sep 2007 21:06:17 -0000
Reply-To:     RodrigoLopezAlsina@GMAIL.COM
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         RodrigoLopezAlsina@GMAIL.COM
Organization: http://groups.google.com
Subject:      Proc Score for matrix multiplication (for Markov Chain)
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset="iso-8859-1"

Hi,
want to use Proc score to multipy two matrixes in SAS.
I have one table that has the probability of transition from one state
to another state in this format:

Start End Prob
  1      1      x
  1      2      x
  2      1      x
  2      2      x

And I have another table that contains my starting state
distributions.

Person  State StartDist EndDist
    1          1         .2          x1
    1          2         .8          x2
    2          1         .2          x1
    2          2         .8          x2

I want to get the ending state distributions for each person for each
state. I think I can do this with proc score. Does anyone have info on
this? or is there an easier way? Someone suggested using PROC IML.

Thanks