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| From | Nick Cox <n.j.cox@durham.ac.uk> |
| To | "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |
| Subject | st: RE: Compute Modus accross variablesCompute Modus accross variables |
| Date | Mon, 6 Dec 2010 11:15:14 +0000 |
I don't know of code for another way to do it. I think the best way to do it without a -reshape- would be to write a Mata function. You'd need to handle ties in frequency with some recipe. Nick n.j.cox@durham.ac.uk Christian Hunkler I am looking for a command / ado that allows to compute the mode accross variables, possibly also for strings. E.g. if I had these data: id var1 var2 var3 1 1991 1992 1991 2 1960 1961 1961 3 1920 1920 1921 I would like to compute a variable storing the mode across lines: id mode 1 1991 2 1961 3 1920 I know this can easily done by some simple reshaping using -egen mode by- collapsing and merging the data again, but we deal with pretty large datasets (reshaping takes minutes) and we have to do this for a couple of variables. And we have to do this for variables storing names (which is possible with -egen mode by-). Maybe there is something available to do this, I haven't found yet? * * 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/