Date:         Wed, 3 Sep 2008 13:38:30 -0700
Reply-To:     mschult@BU.EDU
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         mschult@BU.EDU
Organization: http://groups.google.com
Subject:      Re: who has experience on doubly repeated measures?
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset=ISO-8859-1

On Aug 29, 5:22 pm, xin...@STAT.PSU.EDU (Xin Wei) wrote:
> hi, I have experiment design in which each subject is measured repeatedly
> on two dimensions: time and treatment. Namely, the subject is measured
> continuously once one drug is administered. after all time points are done
> and a short period of washout time, a second drug is administered and data
> are collected continously..... and then the third drug.... and so on...
>
> i wonder how to set up model, repeated and random statement in SAS proc
> mixed...
>
> I appreciate any input in advance.

Take a look at Judith Singer's great tutorial on using SAS with
multilevel methods on her web site at Harvard. She discusses in detail
exactly what you need. You can contact me at mschult@bu.edu and I'll
send you a copy in pdf format.

Mark