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RE: st: Generalised interval regression
Dear Richard,
Thank you very much. What I meant in my question was, if there is a way
to relax the parallel line assumption when using intreval regression and
I think what you prospose does exactly that.
However, I d like to ask how could I specify these inetrvals?
If I had these inetervals: 0-20, 21-60 and 61-100
Would it be correct to write:
constraint 1 depvar>0 & depvar<20 if depvar==1
constraint 2 depvar>20 & depvar<60 if depvar==2
constraint 3 depvar>60 & depvar<100 if depvar==3
And then
oglogit2 depvar indepvar, npl() constraints(1-3)
Thanks
Manos
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Richard
Williams
Sent: 02 December 2006 01:54
To: [email protected]
Subject: Re: st: Generalised interval regression
At 10:53 AM 12/1/2006, Mentzakis, Emmanouil wrote:
>Dear all,
>
>I would like to estimate a generalised interval regression model.
>
>I know there is the option of goprobit but I would like to use the
>interval information that I have.
>
>Does anybody know if it is possible?
>
>Best regards
>Manos
Manos, I'm not sure what a generalized interval regression model would
be. Are there articles on it?
Perhaps the idea would be that you could specify what the cutpoints were
instead of having to estimate them? If so, maybe it could be done using
the constraints option of gologit2 or goprobit.
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
FAX: (574)288-4373
HOME: (574)289-5227
EMAIL: [email protected]
WWW (personal): http://www.nd.edu/~rwilliam
WWW (department): http://www.nd.edu/~soc
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