Message-ID: <alpine.LFD.2.00.0903021357530.4085@toucan.stats.ox.ac.uk>
Date: 2009-03-02T14:04:55Z
From: Brian Ripley
Subject: Bold Face in Plot
In-Reply-To: <5B2F2CD24AD2764D898AF5A7B9A2ABBFD20767@hermes.demogr.mpg.de>
On Mon, 2 Mar 2009, Rau, Roland wrote:
> Dear all,
>
> I am trying to plot some text in bold face which works fine:
>
> plot(0:1,0:1,type="n")
> text(x=0.5, y=0.5, labels=expression(bold("the-actual-string")))
>
> Now when I try to do the following, the displayed text reads thestring:
>
> thestring <- "the-actual-string"
> plot(0:1,0:1,type="n")
> text(x=0.5, y=0.5, labels=expression(bold(thestring)))
See ?substitute (or its wrapper bquote) E.g.
> lab <- substitute(bold(thestring), list(thestring=thestring))
> text(x=0.5, y=0.5, labels=lab)
But, why are you setting plain text as an expression? The better way
to do this is
thestring <- "the-actual-string"
plot(0:1,0:1,type="n")
text(x=0.5, y=0.5, labels=thestring, font=2)
See ?par (and ?text). There are subtle differences (e.g. how the
baslines are aligned), and using plotmath when you do not need it will
get you encountering those differences.
> Can someone tell me what I am doing wrong? I assume it is rather simple
> but I am stuck somehow.
>
> Thanks in advance,
> Roland
>
> P.S. I tried it using ("ancient") R 2.7.0 on Windows32 and version 2.8.1
> on GNU/Linux (Ubuntu 8.10).
--
Brian D. Ripley, ripley at stats.ox.ac.uk
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