Date: Mon, 15 Aug 2005 10:39:11 -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: QR: NLMIXED and overdispersion
In-Reply-To: <MC2-F24CdJB8QO8gjui0011dbef@mc2-f24.hotmail.com>
Content-Type: text/plain; format=flowed
adel_tangi@YAHOO.FR ecrit:
>My problem corresponds to the second question, I have , or Iexpect an
>overdispersion probleem with my binary variable and I would like to handle
>that in the second level of my model, using the NLMIXED procedure.
That should be straightforward. One of the classical ways of modeling
that is to treat the parameter p as coming from a beta distribution,
and modeling that in your second stage. Have you tried that?
David
--
David L. Cassell
mathematical statistician
Design Pathways
3115 NW Norwood Pl.
Corvallis OR 97330
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