Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
From | Duha Altindag <daltin2@tigers.lsu.edu> |
To | statalist <statalist@hsphsun2.harvard.edu> |
Subject | st: -probit- does not converge, but does -dprobit- |
Date | Wed, 2 Feb 2011 10:34:11 -0600 |
Hi Statalisters: I am using version 11.1. I have two data sets: old.dta and new.dta. They are almost identical, but new.dta has more observations. That is, old.dta is a subset of new.dta. Sometime ago, with an earlier version of Stata I had used old.dta and run -probit- and -dprobit-. That time, I could get marginal effects using both -probit- and -dprobit-. Now, I use new.dta and run -probit- : it doesn't converge. Then I use run -dprobit- : it does converge and gives me marginal effects. Then I experiment with old.dta and Stata 11.1. I get the same thing: -probit- does not converge, but -dprobit- does. Previously, someone complained about a similar issue and he was advised to contact Stata Support. http://www.stata.com/statalist/archive/2010-08/msg01331.html Is there an update on the issue? Would you advise me to contact the Support as well? Or does someone have a quick advice? I know -dprobit- is not an official command anymore. But does it mean its results cannot be trusted? Should I trust -probit- or -dprobit-? Thanks for reading my question. Duha * * 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/