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Message-ID: <CAPxEaETHvqC+HAT=9WXX_M3WPH-T1V6UuBkieCKGtQXV4yqwvA@mail.gmail.com> Date: 2012-02-16T11:34:58Z From: Gian Maria Niccolò Benucci Subject: R-help Digest, Vol 108, Issue 16 In-Reply-To: <mailman.33.1329390010.13658.r-help@r-project.org> An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20120216/65deb415/attachment.pl>