I got the right answer: mtext(text=expression(Winter(DJF)~mean~daily~precipitation~bar(italic(P))), side=3, line=1, cex=1.3, col="black") Thanks.
On Tuesday, December 9, 2014 1:28 PM, Zilefac Elvis <zilefacel...@yahoo.com> wrote: Hi, I would like to add a dash (—) on a letter in R. How can I add a dash on letter P in the following: mtext(text=expression(Winter(DJF)~mean~daily~precipitation~italic(P)), side=3, line=1, cex=1.3, col="black") ?plotmath could not provide an answer to my problem. many thanks for your solutions. Asong. ______________________________________________ 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.
