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| From | Nick Cox <njcoxstata@gmail.com> |
| To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
| Subject | Re: st: does -mf_panelsetup- need presorted a panel with a numerical panel id? |
| Date | Fri, 19 Jul 2013 00:16:35 +0100 |
I disagree on the lack of documentation. The help and manual entry for -xtset- explain that panel identifiers must be numeric variables. Why I do not know, but you cannot get far with panel data analysis in Stata without satisfying this rule. Nick njcoxstata@gmail.com On 18 July 2013 23:11, László Sándor <sandorl@gmail.com> wrote: > A quick update: My code runs OK if I -tsset- and -sort- first on a > numerical panel id. So this look like an undocumented requirement. > > It makes sense from Mata's capabilities, it is not there to collect > row "panelid == same string", but it still would be nice to document. > > Thanks. > > On Thu, Jul 18, 2013 at 5:49 PM, László Sándor <sandorl@gmail.com> wrote: >> I am trying to troubleshoot what's wrong with my code under Stata/MP >> 12.1 for Win 64 code. >> >> Perhaps it does not do its job if the st_view it works on does not >> have a contiguous panels (i.e. the data is not sorted on the panel >> identifier)? >> >> And is it a problem if my supposed panel id is a string variable? >> >> I found no relevant documentation on this. >> >> Thanks, >> >> Lasylo >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/faqs/resources/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/faqs/resources/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/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/