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Message-ID: <CAF=8oOYJMgMCiSjHCmLnjCN8_K7mh16AqA4HOCp1J_jT+Rb2Ag@mail.gmail.com> Date: 2012-07-20T16:33:20Z From: Yolande Tra Subject: convert date to a factor In-Reply-To: <CAAmySGP2OhdTzMX=vxh1kDH_06B6vnpctSOnK10CY41pnA=xsg@mail.gmail.com> An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20120720/47238d9b/attachment.pl>