From winstonchang1 at gmail.com  Thu Dec 19 19:19:53 2013
From: winstonchang1 at gmail.com (Winston Chang)
Date: Thu, 19 Dec 2013 12:19:53 -0600
Subject: [Rd] Strange warnings when unloading packages with S4 classes
Message-ID: <CAFOpNVG5S1eLSe5bb3NfOxhp3zTYthk50ODFYHTxoYvzjDMOzw@mail.gmail.com>

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[Rd] Strange warnings when unloading packages with S4 classes
Winston Chang