Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: missing factor variables in table of estimates
From
[email protected] (Brendan Halpin)
To
[email protected]
Subject
Re: st: missing factor variables in table of estimates
Date
Sat, 03 Mar 2012 15:24:04 +0000
I'm having a related difficulty as the following code demonstrates:
use http://www.stata-press.com/data/lf2/couart2.dta, clear
poisson art i.fem phd
est store PRM
nbreg art i.fem phd
est store NBRM
est table PRM NBRM
This generates the following, where the nbreg model can't see the 1.fem
parameter, but the poisson model can.
----------------------------------------
Variable | PRM NBRM
-------------+--------------------------
art |
fem |
0 | (base) (empty)
1 | -.24280475 (empty)
|
phd | .08183624 .08529713
_cons | .37346521 .36445355
-------------+--------------------------
lnalpha |
_cons | -.57963612
----------------------------------------
The problem doesn't arise if I don't use factor notation.
I note that poisson and nbreg handle reporting parameter estimates in
different ways; perhaps this is a consequence of that.
Brendan
--
Brendan Halpin, Department of Sociology, University of Limerick, Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147
mailto:[email protected] ULSociology on Facebook: http://on.fb.me/fjIK9t
http://teaching.sociology.ul.ie/bhalpin/wordpress twitter:@ULSociology
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/