I'm not quite sure why, but reading in the *sorted* data (imported into Excel, sorted, written to a text file) worked perfectly fine with read.delim().
Thanks to those that replied! -Robin [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.