Constrained estimation:
. constraint define 1 [Uninsure]
. constraint define 2 [Prepaid]: site2 site3
. mlogit insure age male nonwhite site site3, constr(1) basecat(2)
. mlogit insure age male nonwhite site site3, constr(2) basecat(2)
. mlogit insure age male nonwhite site site3, constr(1-2)
among other things. their sytax looks different from yours. does this
matter? i am new so don't know.
From opening a log file then typing -findit mlogit constraint-
the viewer contains:
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Keywords: mlogit constraint
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[R] mlogit . Max.-likelihood multinomial (polytomous) logistic regression
(help mlogit)
Example . . . . Textbook examples: Applied Logistic Regression (2nd Edition)
. . . . . . . . . . . . . . . . . . UCLA Academic Technology Services
6/01 http://www.ats.ucla.edu/stat/books/alr2/default.htm
examples from the book Applied Logistic Regression
(2nd Edition) by David Hosmer and Stanley Lemeshow
STB-61 sg163 . . . . . . . . . . . . . . . . . Stereotype ordinal regression
(help soreg if installed) . . . . . . . . . . . . . . . . . . M. Lunt
5/01 pp.12--18; STB Reprints Vol 10, pp.298--307
implementation of Stereotype Ordinal Regression (SOR) which
can be thought of as imposing constraints on a multinomial
model
STB-56 sbe37 . . . . Special restrictions in multinomial logistic regression
(help mclgen, mclest if installed) . . . . . . . . . . . J. Hendrickx
7/00 pp.18--26; STB Reprints Vol 10, pp.93--103
programs for multinomial conditional logit providing greater
flexibility for restrictions on the dependent variable;
including stereotyped ordered regression models and the row
and columns model 2 which contain both linear and multipli-
cative terms
Web resources from Stata and other users
(contacting http://www.stata.com)
no matches
good luck.
-laurel
At 03:56 PM 9/20/2002 +0000, you wrote:
Hi Stata List:
As suggested, I have tried looked up for templates (re: help 'mlogit')
to constraint my earnings estimates in multinomial logit situations.
However, the 'invalid syntax' still keep repeating on my screen.
So, again I am posting my hypothetical example and hoping to get more
responses and suggestions from the list:
Dependant variable: PAR
Independent variables: edu, race, earn1, earn2, earn3.
If I want to constraint estimates of my earn variables only, ie.
earn1=earn2=earn3.
What's the appropriate command I shall be using in the multinomial
logit situation?
I have tried template such as:
cons def 1 (par)earn1=earn2
cons def 2 (par)earn2=earn3
mlogit par edu race earn*, cons (1-2)
However, the response I have received is either 'invalid syntax' or earn*
is completely 'dropped' from the multinomial logit equation. I am really
hoping anyone who have been working on 'constraint' issues could share
some their experiences with me, and better if you could offer some suggestions.
Thanks again.
Regards,
Hannah
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Laurel A Copeland, PhD
Data Analyst/Programmer
VA Ann Arbor Medical Center
Health Services Research & Development Field Program
P.O.Box 130170 // 24 Frank Lloyd Wright
Ann Arbor MI 48113-0170 // Ann Arbor MI 48105
Tel: 734-930-5132
Fax: 734-930-5159
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