Perpendicular symbol in plotmath?
Hi
Matthew Neilson wrote:
Thanks for your response, Gabor.
That works quite nicely. The documentation states that it is not possible to mix and match Hershey fonts with plotmath symbols. My *ideal* scenario would be to write the
perpendicular symbol as a subscript (specifically, I would like to have " \epsilon_{\perp} " as an axis label).
I have searched the help archive, and it turned up the following post from 2002:
http://tinyurl.com/2m8n9c
which explains a way of "faking" subscripts when using the Hershey fonts, though it does have several drawbacks. Have things moved on in the last five years, or is this still the best
known solution?
Unfortunately, you still cannot use Hershey fonts with plotmath (just lacking implementation). Also, the perpendicular symbol is not implemented in plotmath (yet). In this case though, there may be a possible workaround. Try the following ...
plot(1, ann=FALSE) title(ylab=expression(epsilon["\136"]), family="symbol")
The plain text character "\136" gets drawn using the symbol font and the perpendicular symbol is character 94 (Octal 136) in the Adobe Symbol Encoding and in the Windows symbol font encoding so this works for PDF, on Windows, and on X11 (though I had to switch to a single-byte encoding to get my system to pick up the symbol font). The drawback with this solution is that anything that is NOT a special mathematical symbol in the expression will come out in Greek letters. Paul
Many thanks for your help, -Matt On Sat Apr 28 17:35 , 'Gabor Grothendieck' <ggrothendieck at gmail.com> sent:
Its available in the Hershey fonts:
plot(0, 0, type = "n")
text(0, 0, "A \\pp B", vfont = c("serif", "plain"))
On 4/28/07, Matthew Neilson matt at gneilson.plus.com> wrote:
Hey,
Does anyone know of an equivalent to the LaTeX \perp (perpendicular)
symbol for adding to R plots? Parallel is easy enough ("||"), but I
haven't been
able to find a way of adding perpendicular. The plotmath documentation
doesn't mention how to do it, so I'm inclined to think that it doesn't
exist - but surely there must be some way of achieving the desired
result,
right?
Any help will be much appreciated,
-Matt
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______________________________________________ R-help at stat.math.ethz.ch 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.
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