Date: Thu, 25 Dec 2003 17:03:37 -0800
Reply-To: Stan Gorodenski <stanlep@EXTREMEZONE.COM>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: Stan Gorodenski <stanlep@EXTREMEZONE.COM>
Subject: Re: PROC LOGISTIC parameter estimates
Content-Type: text/plain; charset=us-ascii
Maybe you didn't get my earlier message and so I will send it again. As I said, it
is a wild guess, and maybe it is completely off base due to a possible
misunderstanding of the code by me.
Stan Gorodenski wrote:
> Just a wild guess, maybe it is a problem with ODS when used with Proc Logistic?
> Nancy Brucken wrote:
> > Hi all,
> > It's Christmas Eve and there's nobody left here, so I'm hoping someone
> > is actually reading SAS-L. I'm trying to output effects and parameter
> > estimates from PROC LOGISTIC with the following code:
> > ODS output typeiii=pval;
> > ods output ParameterEstimates=parmest;
> > PROC LOGISTIC DATA=final;
> > CLASS rxgrp subno a1ccat / param=ref;
> > MODEL resp (event='1') = rxgrp subno rxgrp*subno a1ccat rxgrp*a1ccat;
> > RUN;
> > I'm getting the effects dataset with no problems. However, SAS gives me
> > the following message for the parameter estimates:
> > WARNING: Variable CLASSVAL already exists on file WORK.PARMEST
> > ODS TRACE only indicates the presence of a single parameter estimates
> > object produced by PROC LOGISTIC, but the warning message seems to indicate
> > there is actually more than one.
> > Curiously, the CLASSVAL field contains a single value that appears to
> > represent the level of only the first of two interaction terms. When I've
> > output parameter estimates for interaction terms from other procedures, the
> > resulting dataset has contained fields LEVEL1 and LEVEL2, representing the
> > level of each interaction term, respectively. Is there something else I
> > need to add to PROC LOGISTIC to get it to eliminate the warning message,
> > and give me the levels of both interaction terms?
> > Thank you very much, and have a great holiday season!
> > Nancy
> > Nancy Brucken
> > firstname.lastname@example.org