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Re: st: RE: graphing predicted probabilities after xtmelogit


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: graphing predicted probabilities after xtmelogit
Date   Mon, 17 Mar 2008 08:52:13 +0000 (GMT)

--- Daniel Rubenson <rubenson@politics.ryerson.ca> wrote:
> I'm not sure your suggestion does what I want. Don't I have to make  
> new predictions for the different values of my variable, minority  
> (instead of simply plotting minority==0 and minority==1)?

Did you try the example as it says in
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html#work ? Do that, and
you will see that it does what you want. To understand why read the
helpfile of -adjust-.
 
> And let's say I also want 95%CI for the plots?

*-------------------- begin example --------------------
webuse bangladesh, clear
xtmelogit c_use urban age child* || district:

adjust child1=0 child2=0 child3=0, se gen(xb se)
gen pr = invlogit(xb)
gen lb = invlogit(xb - invnormal(.975)*se)
gen ub = invlogit(xb + invnormal(.975)*se)
sort urban age
twoway rarea lb ub age if urban == 0 || ///
       rarea lb ub age if urban == 1 || ///
       line pr age if urban == 0     || ///
       line pr age if urban == 1,       ///
       legend(order(3 "rural"           ///
                    4 "urban" ))
*------------------- end example ------------------------
(For more on how to use examples I sent to the Statalist, see
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

Hope this helps,
Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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