From violetlock at gmail.com  Tue Feb  9 23:00:48 2010
From: violetlock at gmail.com (violet lock)
Date: Tue, 9 Feb 2010 17:00:48 -0500
Subject: [Rd] Aggregate dataframe variables, return more than 2 vars
Message-ID: <bb3f839b1002091400i11f85210nb93fefe01e71842c@mail.gmail.com>

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[Rd] Aggregate dataframe variables, return more than 2 vars
violet lock