Date: Tue, 16 Aug 2011 02:58:36 -0700
Reply-To: Steve Denham <email@example.com>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: Steve Denham <stevedrd@YAHOO.COM>
Subject: Re: user-defined link function in GLIMMIX
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The GLIMMIX documentation includes a section on "User Defined Link or Variance Function" that gives a good start. Note that _LINP_ must NOT appear on the left side of the equal sign.
Assuming the notation in the documentation, you could try (easy part):
The hard part for me is defining _VARIANCE_ in terms of _LINP_, but if you can do that, this should all fall into place. When invoking the model statement, no DIST= or LINK= option would be given.
Associate Director, Biostatistics
MPI Research, Inc.
From: Andrew <wacox@MIZZOU.EDU>
>Sent: Monday, August 15, 2011 4:24 PM
>Subject: user-defined link function in GLIMMIX
>I am unclear on how to correctly program a user-defined link function in GLIMMIX. The link function
>is very similar to the logit link and looks like this:
>log((mu**a)/(1-mu**a)) where a= 1/x
>It seems like it should be fairly straightforward, but not for me. Any help is much appreciated!
>University of Missouri - Columbia