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Message-ID: <896030.91917.qm@web27006.mail.ukl.yahoo.com>
Date: 2011-06-08T16:54:18Z
From: Iker Vaquero Alba
Subject: Variable () converted to a factor
In-Reply-To: <BANLkTinPqsxuJwNy2L6VKH9iRrm8qbCktw@mail.gmail.com>

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