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Message-ID: <a655356a0903141539y23be6165t23fb39cde237bb80@mail.gmail.com> Date: 2009-03-14T22:39:46Z From: Huan-Kai Tseng Subject: [multi-level model] set up categorical variable/indicator? An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20090315/dcb37e59/attachment-0002.pl>