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From | Maarten Buis <maartenlbuis@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: modifying egen to add a replace feature |
Date | Thu, 19 Jul 2012 09:13:31 +0200 |
On Wed, Jul 18, 2012 at 5:00 PM, Pradipto Banerjee wrote: > Is it possible to rewrite or modify egen, or create an ado file, such that I can simply write like this: > > bysort x: egen y = myfunc (y, a, b, ...), replace Yes, the logic behind the way -egen- works is that if you type -egen y = myfunc()-, -egen- will look for a file _gmyfunc.ado, which implements the function myfunc() and it also passes the option you have specified to that .ado file. So you can write your own -egen- functions. The easiest way to get started is to look at an existing similar function and addept that, e.g. look at -viewsource _gmean.ado. 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/