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Message-ID: <CAG2PC+c-7Fh04JkZeVt5dvVQwiVUYSKYLo=T2eCAvHY2oEhi1g@mail.gmail.com> Date: 2011-10-27T19:26:03Z From: Ben quant Subject: preceding X. and X In-Reply-To: <CAFaj53mCfZqpPyDRpB0qc4OZab2Riv-jWyRMgV6RQtK=bq2pSg@mail.gmail.com> An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20111027/ce9bf809/attachment.pl>