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st: specifying all values different condition


From   Viktor Emonds <Viktor.Emonds@soc.kuleuven.be>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: specifying all values different condition
Date   Thu, 13 Feb 2014 11:12:50 +0000

Hello everyone,

I've been breaking my head over something that can probably be very easily done. I want to evaluate whether the value on any variables in a varlist matches with the value of any other variable in the last. If it were only three variables, this would amount to something like:

if var1!=var2 & var1!=var3 & var2!=var3

How could I do this in a more elegant way when the varlist becomes much longer and the number of these 1-on-1 dissimilarity conditions would exponentially increase? Thanks!

Best,

Viktor
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