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st: St: Dropping variables with mostly missing values
From
"Eric M. Uslaner" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: St: Dropping variables with mostly missing values
Date
Fri, 7 Feb 2014 20:11:29 +0000
I know that this has been discussed before, but a long search doesn't find a solution for me (my own fault in searching, most likely).
I have a data set (not my own) with 161 cases over a long time period. But most of the variables are largely made up of missing values (information wasn't available a long time ago). I have used Nick Cox's dropmiss (from SSC) to drop variables with all missing values. But a large number of variables remain with few observations. I would like to delete any variable with fewer than 20 cases. But I can't figure out how to do this (especially since I have a large number of variables, most of which have very few cases). Any help would be appreciated.
Ric Uslaner
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