David, I tried your suggestion, still not working:
x<-3 plot(1:10) title(bquote(bold(x) <= bold(as.character(.(x)) ))) It prints x<=as.character(3) as title Thanks John ----- Original Message ---- From: David Winsemius <dwinsem...@comcast.net> To: array chip <arrayprof...@yahoo.com> Cc: Peter Ehlers <ehl...@ucalgary.ca>; R <r-help@r-project.org> Sent: Tue, June 28, 2011 11:30:23 AM Subject: Re: [R] how to print "<=" in plot title On Jun 28, 2011, at 2:19 PM, array chip wrote: > Thank you David and Bert. > > x<-3plot(1:10) > title(bquote( x <= .(x) )) > > would do what I want. But I also want the title printed in bold font. so I >tried > > x<-3 > plot(1:10) > title(bquote(bold(x <= .(x)) )) > > But this did not print the "less than equal to" symbol and the number 3 (from > variable x) in bold. Anyway to solve that? Nope. The Symbol font has no bold type face. Bolding of numbers _can_ be done inside bquote with bold(as.character(.(x)) ) --David > > Thanks again! > > John > > > > > ----- Original Message ---- > From: David Winsemius <dwinsem...@comcast.net> > To: Peter Ehlers <ehl...@ucalgary.ca> > Cc: array chip <arrayprof...@yahoo.com>; R <r-help@r-project.org> > Sent: Tue, June 28, 2011 11:04:07 AM > Subject: Re: [R] how to print "<=" in plot title > > > On Jun 28, 2011, at 1:52 PM, Peter Ehlers wrote: > >> On 2011-06-28 10:25, array chip wrote: >>> Hi, how can I print "<=" (I mean the symbol of just one character) in the > main >>> title of a plot? >>> >>> for example: >>> >>> plot(1:10, main=paste("x<=", x)) >>> >>> where variable x is some number generated on the fly. >> >> x <- 2.718 >> plot(0, 0) >> title(bquote( x %<=% .(x) )) > > I think John wants the mathematical symbol. As was pointed out in a question > last week, the `<=` plotmath symbol needs to be flanked by operands. > Non-printing operands can be created with the phantom function: > > title(main=expression(phantom("")<=phantom("")) ) > > Contrary to Gunters's comment, this is probably going to work on all the three > major OS platforms. It depends only on whether there is a Symbol font mapped to > the output device. >> >> ?plotmath > > Yes. The details are there. > >> >> Peter Ehlers >> > > > David Winsemius, MD > West Hartford, CT 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.