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| From | Maarten buis <maartenbuis@yahoo.co.uk> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: string panelvar problem with xtset |
| Date | Fri, 8 Apr 2011 17:30:25 +0100 (BST) |
--- On Fri, 8/4/11, Dimitriy V. Masterov 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? sort string_id by string_id : gen first = _n == 1 gen num_id = sum(first) drop first Hope this helps, Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * 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/