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Message-ID: <CAOwh97szcM39btUf7ew-=D+uwd1eeaKoTFTUWKVqds_ADSHx9w@mail.gmail.com>
Date: 2011-12-02T18:28:35Z
From: Aurélien PHILIPPOT
Subject: Problem subsetting: undefined columns
In-Reply-To: <33DACDEA-8EF7-4414-A81B-D869C0AB94FD@gmail.com>

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