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> You are missing the closing bracket on the boxplot() > command. Just finish with a ')' Hmm... I once learned '()' =: parenthesis/es '[]' =: bracket(s) '{}' =: brace(s) Of course, I'm not a native English speaker, and my teacher(s) / teaching material may have been biased ... but, as all three symbol pairs play an important role in R, I think it would be really really helpful, if we could agree on using the same precise English here. I'm happy to re-learn, but I'd really like to end up with three different simple English words, if possible. (Yes, I know and have seen/heard "curly braces", "round parentheses", ... but I'd hope we can do without the extra adjective.) Thank you, well versed English (or "American") learned readers of R-help, for wise guidance on this ... Martin ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.