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Message-ID: <20090227120703937.00000002208@UNIVERSI-89EA28> Date: 2009-02-27T12:07:03Z From: Xin Shi Subject: how can I compare two vector by a factor An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20090227/21fc632b/attachment-0001.pl>