Date:         Sun, 30 Apr 2006 13:49:38 -0700
Reply-To:     David L Cassell <davidlcassell@MSN.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         David L Cassell <davidlcassell@MSN.COM>
Subject:      Re: Differences in defining random effects between packages
In-Reply-To:  <200604300905.k3U3MsM1030912@mailgw.cc.uga.edu>
Content-Type: text/plain; format=flowed

sammiesmiles@GMAIL.COM wrote back:
>Sorry, David. I mean i want to fit the data into the re model. Data are
>sorted by Area. I just the want to find the estimates of the Area
>variance component.

If you want AREA to be in your model you need to tell me exactly *how*
you want it in the model.  Do you want a random slope?  A random intercept?
Do you want AREA to be a random effect?  What does the rest of your
model look like?  Is AREA nested or cossed with anything?

It would really be a lot simpler if you would just write down the
mathematical
formula you are envisioning for the mixed model, so all the interested
SAS-Lers
could see what you really want.

HTH,
David
--
David L. Cassell
mathematical statistician
Design Pathways
3115 NW Norwood Pl.
Corvallis OR 97330

_________________________________________________________________
Is your PC infected? Get a FREE online computer virus scan from McAfeeŽ
Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963