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| From | Marly Tatiana Celis Galvez <marlytati@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: problems with installing the quaids command |
| Date | Sat, 1 Sep 2012 10:50:21 -0500 |
Hello, I will take on consideration the number of goods i'm working with. thanks a lot for your fast response, the command runs perfectly. Best regards Marly tatiana 2012/8/31 Brian P. Poi <bpoi@stata.com>: > > 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 > -- bpoi@stata.com > * > * 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/ -- Marly Tatiana Celis Gálvez * * 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/