Hi Richard,
I am thinking of trying out your gologit2 program. Is it possible to get a zip file with the program. The Statistics Canada lab that I work in does not allow the computers to be connected to the internet. Thus, I cannot download gologit2 through Stata.
Thanks again for the help.
Jason
________________________________________
From: [email protected] [[email protected]] On Behalf Of Richard Williams [[email protected]]
Sent: Friday, May 08, 2009 6:19 PM
To: [email protected]; [email protected]
Subject: RE: st: St: Ordered Logit Question
At 04:00 PM 5/8/2009, Jason Dean, Mr wrote:
>Hmm, I'll have to take a look at it again. But when I run separate
>ologits and do predicted values they are much different then when I
>combine the sample and include a immigrant dummy (and of course
>interact all covariates). Maybe I made a typo in my code.
You are only allowing for index shift (all cutpoints differ by the
same amount) by doing so, so your pooled model is more constrained
than when you run separate ologits. If you want a pooled model to
perfectly reproduce your separate ologit results, try something like
use "http://www.indiana.edu/~jslsoc/stata/spex_data/ordwarm2.dta";, clear
ologit warm yr89 if male, nolog
ologit warm yr89 if !male, nolog
gen maleyr89 = male * yr89
gologit2 warm yr89 male maleyr89, npl(male) lrf
The code I gave earlier would be handy if you thought the only
difference between groups was in their cut points.
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
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