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st: Missing observations


From   Csaba Kertai <csaba.kertai@hotmail.co.uk>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: Missing observations
Date   Thu, 20 Jun 2013 12:17:28 +0200

Dear All,

I need a bit of help with dropping missing observations. If I use 'drop if missing(var)' or drop if 'var'==. etc. many other observations are dropped as well. More precisely, var1 has 1125 observations and var2 has 169 observations. I want to drop missing observations for var2 but if I use drop if var2==. then this will keep only 169 observations for each variable. I only want to drop values that are missing. 

Any help is greatly appreciated.

Thank you 		 	   		  
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