Thank you very much Duncan. I see I also had the mistake of a "c" instead of "expression" in my question.
Mark On Fri, Jan 22, 2010 at 7:59 AM, Duncan Murdoch <murd...@stats.uwo.ca> wrote: > On 21/01/2010 3:50 PM, Mark Seeto wrote: >> >> Hello, >> >> I'm fairly new to R and I can't work out how to produce a double >> inequality like (LaTeX) $0 \leq x \leq 1$ in the legend of a graph. If >> I try >> >> > legend(50, 0.1, legend = c(expression(0 <= x <= 1), c(2 <= x <= 3)), pch >> > = c(1,1), col = c(2, 3)) >> >> then I get an error message "unexpected '<=' in ...". I've checked the >> help files for plotmath and expression, but could not find a solution. >> > > That's not legal R syntax, so you have to cheat. For example, > > legend(50, 0.1, legend = expression(paste(0 <= x) <= 1, paste(2 <= x) <= 3), > pch = c(1,1), col = c(2, 3)) > > Duncan Murdoch > ______________________________________________ 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.
