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RE: st: graph interaction of continuous and categorical variables


From   Cameron McIntosh <cnm100@hotmail.com>
To   STATA LIST <statalist@hsphsun2.harvard.edu>
Subject   RE: st: graph interaction of continuous and categorical variables
Date   Sat, 14 Jan 2012 20:01:14 -0500

Well, your initial post said nothing about multiple levels. Is the interaction at level 1 only or is it cross-level?Cam

----------------------------------------
> From: jessjoe@live.com
> To: statalist@hsphsun2.harvard.edu
> Subject: RE: st: graph interaction of continuous and categorical variables
> Date: Sat, 14 Jan 2012 14:17:02 -0500
>
> Thank you very much!
> i have a follow-up question: the -margins- command does not work for multilevel logistic regressions. i got the error message "default prediction is a function of possibly stochastic quantities other than e(b)".
> is there any way to graph interaction of a continuous and categorical variable in a multilevel logistic regression in STATA?
> Thanks again.
>
> ----------------------------------------
> > Date: Sat, 14 Jan 2012 17:11:22 +0100
> > Subject: Re: st: graph interaction of continuous and categorical variables
> > From: maartenlbuis@gmail.com
> > To: statalist@hsphsun2.harvard.edu
> >
> > On Sat, Jan 14, 2012 at 3:31 AM, Jess Joe wrote:
> > > I have a logistic regression model:
> > > logit(Y) = X1 + (X1)^2 + i.X2 + i.X2*X1 + i.X2*(X1)^2
> > > X1 is a continuous variable, X2 is a 4-category variable.
> > > How can i graph the interaction effects in STATA? is there any specific command that could do this for me?
> >
> > -help marginsplot-
> >
> > Hope this helps,
> > Maarten
> >
> > --------------------------
> > Maarten L. Buis
> > Institut fuer Soziologie
> > Universitaet Tuebingen
> > Wilhelmstrasse 36
> > 72074 Tuebingen
> > Germany
> >
> >
> > http://www.maartenbuis.nl
> > --------------------------
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