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...o this every day. How can I do that? Thanks a lot -- Bárbara H. Costa Marine Biologist Researcher SCIAENA - Marine Sciences and Cooperation www.sciaena.org ISPA | http://www.ispa.pt/ui/uie/index.asp BIOMARES | http://www.ccmar.ualg.pt/biomares/ MSI-UCSB | http://www.msi.ucsb.edu/ bcosta@ispa.pt barbarahcosta@gmail.com [[alternative HTML version deleted]]

...ion has length > 1 and only the first element will be used This question seemed easy in the beginning but I was not successful. Thanks a lot for helping me. Barbara -- Bárbara H. Costa Marine Biologist Researcher SCIAENA - Marine Sciences and Cooperation www.sciaena.org bcosta@ispa.pt barbarahcosta@gmail.com [[alternative HTML version deleted]]

...hift to excell! Thanks a lot, Cheers, Barbara -- Bárbara H. Costa Marine Biologist Researcher SCIAENA - Marine Sciences and Cooperation www.sciaena.org ISPA | http://www.ispa.pt/ui/uie/index.asp BIOMARES | http://www.ccmar.ualg.pt/biomares/ MSI-UCSB | http://www.msi.ucsb.edu/ bcosta@ispa.pt barbarahcosta@gmail.com [[alternative HTML version deleted]]

...437c4 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Dear All, Where can one find the code of the max() function? Is that written in C? Thanks in advance, Paul ------------------------------ Message: 37 Date: Mon, 4 May 2009 17:31:20 +0100 From: barbara horta e costa <barbarahcosta at gmail.com> Subject: [R] help_if command_new column To: r-help at R-project.org Message-ID: <c61c88fe0905040931w3815b8e6w7d608091a46a00a1 at mail.gmail.com> Content-Type: text/plain Hi everyone, Do you know how to apply a If command to a vector in a data.frame, creating a new column?...