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st: panel data: drop a whole group/identifier

From   Sabrina Helmut <>
To   <>
Subject   st: panel data: drop a whole group/identifier
Date   Wed, 17 Aug 2011 16:54:30 +0200

Dear all,

I sorted my panel data by year (2004-2006) and identifier. Now, I want to drop the identifier for the whole panel (2004-2006) if a certain condition let's say for one of the years (2006) is not fulfilled. What is the correct command for dropping whole groups (characterised by a specific identifier)? I already tried the "by" command but think that this doesn't help to drop a whole group. "By" would only drop the year where the condition is not fulfilled and the remaining identifier-year observations are kept. Am I right?

Best regards, Sabrina
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