Try this, b = 20
plot(1, ylab= bquote(italic(P) * .(b)) ) HTH, baptiste On 19 August 2010 20:02, array chip <arrayprof...@yahoo.com> wrote: > Hi all, let me give a simple example: > > b<-20 > I would like to print ylab as "P20" where "P" is printed in Italic font. When > I > do the following: > > plot(1, ylab=expression(paste(italic("P"),b,sep=""))) > > I got y axis label printed as "Pb" instead of "P20". What is the best solution > to print platmath symbols with value of the variable at the same time? > > Thanks > > John > > ______________________________________________ > 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. > -- ____________________ Dr. Baptiste Auguié Departamento de Química Física, Universidade de Vigo, Campus Universitario, 36310, Vigo, Spain tel: +34 9868 18617 http://webs.uvigo.es/coloides ______________________________________________ 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.