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...to create the x dataset manually with all 40 variables I have). There must be a more elegant way to do this than x=xxx[,c('x1','x2',...,'x40')] Thanks! George -- View this message in context: http://r.789695.n4.nabble.com/How-make-a-x-y-dataset-from-a-formula-based-entry-tp3834477p3834477.html Sent from the R help mailing list archive at Nabble.com.