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Message-ID: <CALCOUquzsPWzh=XZ08Ewbtp2WpH59BWFuE7_JszbgWDsR-5faA@mail.gmail.com> Date: 2012-07-25T21:09:41Z From: Freddy López Subject: [R-es] Duda urgente In-Reply-To: <1343193703.39987.YahooMailClassic@web29605.mail.ird.yahoo.com> An embedded and charset-unspecified text was scrubbed... Name: no disponible URL: <https://stat.ethz.ch/pipermail/r-help-es/attachments/20120725/d0d60a4f/attachment.pl>