With -adjust- you can also add confidence intervals
around those predicted probabilities:
*--------- begin example ---------
sysuse auto, clear
logit foreign price mpg
adjust , by(mpg) ci pr replace
twoway rcap lb ub mpg || /*
*/ scatter pr mpg, legend(off)
*--------- end example -----------
-----------------------------------------
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/
-----------------------------------------
-----Original Message-----
From: [email protected] [mailto:[email protected]]On Behalf Of Maarten Buis
Sent: dinsdag 9 januari 2007 14:35
To: [email protected]
Subject: RE: st: RE: Question regarding postgr3
--- Stijn Ruiter wrote:
Running the program is not the problem.
I misread your question.
Consider the example below: mpg in the example is
year in your data. It plots for each value of mpg
(year) the predicted probabilities for a car with
a mean value on price for all cars with that value
on mpg.
*------- begin example ------
sysuse auto, clear
logit foreign price mpg
adjust , by(mpg) pr replace
scatter pr mpg
*------ end example --------
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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