On Fri, 12 Nov 2021, Chris Evans wrote:
I think it's your xlab. Should be:
Chris, Ah, I should know better, but I didn't relate the error message to that line. Thank you. Rich ______________________________________________ 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.
