Try this: par(mar = c(5.1, 6, 4, 2)) plot(1, ylab = '') mtext(expression(PM[2.5] ~ Concentration ~(mu*g/m^3)), side = 2, line = 4) mtext("(random text in brackets)", side = 2, line = 3, cex = 0.8)
On Thu, Mar 18, 2010 at 3:02 PM, Peng Cai <pengcaimaill...@gmail.com> wrote: > Hi All, > > I'm trying to get following but not successfully: > > # this works okay > ylab=expression("PM2.5 Concentration ("*mu*g/m^3*")") > > # But I need "2.5" as a subscript to PM and below this an additional line > saying some text, like. > ylab=expression("PM[2.5] Concentration ("*mu*g/m^3*")"\n(random text in > brackets)) > > Square brackets doesn't seem to work because I'm using them in "" and \n > operator is not working too. Any help would be highly appreciated, thanks, > Peng Cai > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.