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| From | Nick Cox <njcoxstata@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: string panelvar problem with xtset |
| Date | Fri, 8 Apr 2011 17:26:12 +0100 |
By "unique" I guess you mean "distinct". "Unique" means occurring once only. -sencode- (SJ) will be bitten by the same limit as -encode-. It won't solve your problem, even slowly. I think you just need to use -egen, group()- and get integers. From the sounds of it you will not want to wade through results for individual panels anyway. Nick On Fri, Apr 8, 2011 at 5:20 PM, Dimitriy V. Masterov <dvmaster@gmail.com> wrote: > I am having trouble xtsetting my data. My panel variable is a > concatenated 12 digit string block-group ID and a 4 digit store id. > There are about 200,000 unique values. > > I cannot encode this variable because it has too many values. Sencode > might be an option, but it has been chugging for some time. > > Any suggestions about how to solve this? Why does the panel variable > have to be numeric? * * 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/