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...his, but I'm clearly not using the right terms. Could someone even point me in the right direction please? Any help/suggestions you can give for either/both parts would be really appreciated. Thanks, Rose -- View this message in context: http://r.789695.n4.nabble.com/Looping-column-names-tp4333870p4333870.html Sent from the R help mailing list archive at Nabble.com.