Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
From | Richard Goldstein <richgold@ix.netcom.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: loop with egen |
Date | Fri, 08 Feb 2013 08:35:35 -0500 |
you need to supply a varlist as in foreach v of var mpg turn weight { Rich On 2/8/13 8:29 AM, Nahla Betelmal wrote: > Dear Statalist, > > I am trying to generate the mean and standard deviation for more than > 30 variables. I tried to do that using the following loop > > foreach v of var { > egen mean = mean(`v') > egen sd = sd(`v') > } > > however, it only generate the mean and standard deviation for the > first variable only. > > I got this message :mean already defined > r(110); > > what should I add to the loop , so it can generate the mean and > standard deviation for each variable in separate column? > > Many thanks > > Nahla * * 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/