Or, maybe I could just draw it with lines()....
-----Original Message----- From: [EMAIL PROTECTED] on behalf of michael watson (IAH-C) Sent: Tue 05/08/2008 1:37 PM To: Prof Brian Ripley Cc: r-help@r-project.org Subject: Re: [R] Greek characters in plots OK, I am definitely struggling here. The text I am trying to plot isn't a mathematical expression, it's: A) ?stbA::cat This is biological notation for a particular mutation. The "A)" part is a tag identifying the graph, and the "stbA::cat" bit is the gene that is mutated. Both the tag and gene are set as variables in a loop, and only the delta remains the same. As the text I am trying to plot isn't a mathematical expression, I seem to be having trouble getting substitute() and expression() to do what I want. As plotmath states "A mathematical expression must obey the normal rules of syntax for any R expression", I fear I may be barking up the wrong tree! Thank you all for your help so far, but can someone please help me once more and tell me how I can get the capital Delta symbol so I can use it in non-mathematical text and strings for plotting? Thanks once again Mick -----Original Message----- From: Prof Brian Ripley [mailto:[EMAIL PROTECTED] Sent: 05 August 2008 12:40 To: michael watson (IAH-C) Cc: Henrique Dallazuanna; r-help@r-project.org Subject: Re: [R] Greek characters in plots On Tue, 5 Aug 2008, michael watson (IAH-C) wrote: > Excellent! I even tried DELTA but not Delta.... ?plotmath says 'Alpha' - 'Omega' uppercase Greek symbols How could that be made clearer? (Note it carefully says Greek *symbols* not *character*: they are not the same thing.) > Now, how do I go about pasting that with some text that I have in various > other variables? Use substitute? E.g. substitute(expression(foo*Delta), list(foo=3)) (Some people prefer bquote, but that is just a wrapper for substitute in R.) > > -----Original Message----- > From: Henrique Dallazuanna [mailto:[EMAIL PROTECTED] > Sent: 05 August 2008 12:17 > To: michael watson (IAH-C) > Cc: r-help@r-project.org > Subject: Re: [R] Greek characters in plots > > Try, > > expression(Delta) > > On Tue, Aug 5, 2008 at 8:14 AM, michael watson (IAH-C) > <[EMAIL PROTECTED]> wrote: >> Hi >> >> I am running an R script that creates 100s of graphs, and I need to use >> the greek CAPITAL letter delta in the mtext() function. >> >> I got as far as expression(delta) but this gives me the lowercase >> version. >> >> Can anyone help? I'm using R 2.7 on Windows XP >> >> Mick >> >> Head of Informatics >> Institute for Animal Health >> Compton >> Berks >> RG20 7NN >> 01635 578411 >> >> http://www.iah.ac.uk/research/bioinformatics/bioinf.shtml >> >> The information contained in this message may be confide...{{dropped:14}} >> >> ______________________________________________ >> 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. > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ 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. ______________________________________________ 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.
