[R] How to embed italic Greek letters in a eps file?

[baptiste auguie]

Hi,

Another option might be the tikzDevice package, which uses LaTeX to
process the fonts,

library(tikzDevice)
tikz(standAlone=T)
plot(1,1, type = 'n')
mtext(side = 3, line = 2, "$\\mu$")
dev.off()

## system("/usr/texbin/pdflatex Rplots.tex")

HTH,

baptiste

On 20 April 2010 07:30, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
> This is discussed in detail on the help page for postcript!  Default
> PostScript with the 14 standard fonts does not cover Greek at all (but it
> does cover mathematical symbols such as mu, in a different typeface).
>
> See the section 'Encodings': to display Greek you need to have an encoding
> which supports Greek.  You did not give us the 'at a minimum' information
> requested in the posting guide so we don't know your locale, but at a guess
> you got ISOLatin1, which does not support Greek.
>
> So try encoding="Greek" and family="URWHelvetica", and make sure that your
> viewer is able to support the font.
>
> On Mon, 19 Apr 2010, Julia Uitz wrote:
>
>> Hi,
>>
>> I need to add on a plot text containing italic Greek characters using the
>> function mtext (i.e. I cannot use Hershey vectors). The characters are
>> nicely displayed when the file is saved as png but not when saved as eps.
>> See code below as example:
>>
>> #postscript('test.eps')
>> png('test.png')
>>
>> plot(1,1, type = 'n')
>> mtext(side = 3, line = 2, expression(italic('\u03bc')))
>>
>> graphics.off()
>>
>> Does anyone have an idea on how to solve this issue?
>>
>> FYI I use R 2.10.1 for Max OS X (v. 10.6.3) but this is not an OS related
>> issue (I have also tried with Windows).
>>
>> Many many thanks in advance,
>>
>> - Julia
>>
>> --
>> Julia Uitz
>> Scripps Institution of Oceanography
>> University of California San Diego
>>
>> ______________________________________________
>> R-help at 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,                  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
>
> ______________________________________________
> R-help at 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.
>



-- 
____________________

Baptiste Auguié

Departamento de Química Física,
Universidade de Vigo,
Campus Universitario, 36310, Vigo, Spain

tel: +34 9868 18617
http://webs.uvigo.es/coloides