The following produces something very similar to David's method: plot(1,1, xlab = expression(paste("Conductivity (", mu, "S / cm)")))
but with a slightly different slash character. I think David's method is more "correct", but I've used the above method in the past with some success. On Fri, Oct 21, 2011 at 11:45 AM, David Winsemius <dwinsem...@comcast.net> wrote: > > On Oct 21, 2011, at 11:27 AM, Rich Shepard wrote: > >> For an axis label I want to include the Greek letter mu within the string. >> I've not found the proper way of including that expression within the >> string. >> >> What I want is "Conductivity (uS/cm)" with the 'u' replaced by mu. When I >> try "Conductivity (" expression(paste(mu)) "S/cm)" I get an error. If I >> don't separate Conductivity and S/cm with parentheses the string >> 'expression(paste(mu))' displays in the lable. > > try: > > plot(1,1, xlab=expression(Conductivity~"("*mu*S/cm*")") ) > > Parens are the only characters that need to be quoted and you do need to use > proper plotmath connectors, "~" and "*" depending on whether you ant a space > to appear or not. I don't hink you can join character values and expression > values in the manner that you offer but I admit I never tried it, so I don't > know for sure. Generally "language" and "expression" objects have their own > special set of functions and syntax. > >> >> What am I doing incorrectly? >> >> Rich >> >> ______________________________________________ >> 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. > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ > 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. -- ___________________________ Luke Miller Postdoctoral Researcher Marine Science Center Northeastern University Nahant, MA (781) 581-7370 x318 ______________________________________________ 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.