Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
"Fitzmaurice, Ann E." <firstname.lastname@example.org>
Tue, 10 May 2011 22:24:54 +0100
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
Ann E Fitzmaurice
Immpact University of Aberdeen
Health Sciences Building
Aberdeen, AB25 2ZD
Tel: +44 (0)1224 553876
Fax: +44 (0)1224 555704
The University of Aberdeen is a charity registered in Scotland, No SC013683.
* For searches and help try: