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]
st: RE: margins
From
"Jesper Lindhardsen" <[email protected]>
To
<[email protected]>
Subject
st: RE: margins
Date
Wed, 11 May 2011 08:40:13 +0200
Hi Ann,
If you use Stata 11 then you should use ## instead of * if you want the
full interaction terms, ie. logistic preterm i.bir_grp##i.age_gr2a
Otherwise, it is difficult to say without your actual syntax (and Stata
version).
BW,Jesper
Ann wrote:
Hi
Am trying to use margins in the following model
Logistic preterm i.bir_grp*i.age_gr2a other categorical variables
Bir_grp has 4 levels, and age_gp2a has 5 levels
I get an error message "factor bir_grp not found in e(b)"
Question , have I mis-specified the model and how can I get margins to
give me the table
Thanks
Ann
Ann E Fitzmaurice
Medical Statistician
Immpact University of Aberdeen
Health Sciences Building
Foresterhill
Aberdeen, AB25 2ZD
Scotland
Tel: +44 (0)1224 553876
Fax: +44 (0)1224 555704
Email: [email protected]
The University of Aberdeen is a charity registered in Scotland, No
SC013683.
*
* 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/
*
* 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/