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| From | daniel klein <klein.daniel.81@gmail.com> |
| To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
| Subject | Re: st: the fastest way to check if unique values of a variable > 100 |
| Date | Sun, 25 Aug 2013 22:43:39 +0200 |
Guess user-written approaches (or ados in general) are probably slower than built-in commands like -tabulate-. I would go with -assert- cap as foo > 100 ,f Note that -capture- supresses output by default, so -quietly- is not needed. Best Daniel -- Try -unique- or -distinct- from SSC. On Sun, Aug 25, 2013 at 11:18 AM, László Sándor <sandorl@gmail.com> wrote: > Hi, > Currently I think it is worth a quiet -cap tab- to catch the error > r(134) or r(r). But it still can be a wasteful operation, as tabbing > does work for many thousands of observations. And of course it does > more than simply count the unique values. >[...] > Is there a fast approach I am not aware of? * * 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/