Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
From | "Brian P. Poi" <[email protected]> |
To | [email protected] |
Subject | Re: st: problems with installing the quaids command |
Date | Fri, 31 Aug 2012 17:17:16 -0500 |
On 08/31/2012 04:38 PM, Marly Tatiana Celis Galvez wrote:
Dear Statalisters, I have been written my program quaids for nlsur command, I have had some problems with the estimation procedure, in the output only 60 of 105 parameters are estimated, I don’t know if it is because of the program I wrote or something else. I am not an expert in programing STATA. What can I do? Wait for the next article of Brian Poi or continue studying the STATA programming module? I appreciate any advice. Regards Marly Tatiana Celis
Marly, One common problem that results in missing parameter estimates is having too many categories (goods) in the demand system given the size of your dataset. Fitting systems with many disaggregated goods often requires a rather large dataset. Of course, what constitutes "many" and "rather large" depends on the specific application. I will forward a copy of my article and command to Marly momentarily. -- Brian Poi -- [email protected] * * 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/