[R] on specifying an encoding for plot's main-argument
murdoch.duncan at gmail.com
Sat Jan 30 02:57:32 CET 2016
On 29/01/2016 10:35 AM, Daniel Bastos wrote:
> Here's how I plot a graph.
> plot(c(1,2,3), main = "graph ç")
> The main-string has a UTF-8 character "ç". I believe I'm using the
> windows device. It opens up on my screen. (The window says ``R
> Graphics: Device 2 (ACTIVE)''.) How can I tell it to use my encoding of
As far as I know that's impossible. R uses the system encoding, and I
don't think any Windows versions use UTF-8 code pages. They use UTF-16
for wide characters, and some 8 bit encoding for byte-sized characters.
R will use whatever 8 bit code page Windows chooses.
> I looked around the web for explanations on how to properly tell the
> relevant mecanisms that I'm using strings with a partcular encoding when
> plotting. I saw many with my difficulty, but no one seemed to explain
> the whole issue.
If you enter the string as a literal, it is not using UTF-8 encoding,
it's using the system's 8 bit encoding.
> At first I thought I should tell the device. So I looked at the
> documentation for various devices. I realized only devices such as
> postscript, pdf had an encoding parameter. ``My assumptions must be
> wrong'', I thought. ``Perhaps it's not the device I must tell my
> Then I come to you. Can you point me towards understanding the issue?
> You can tell me to read an entire book on encoding, charset and fonts.
> I'd like to free myself from such difficulties.
> I use R and ESS (GNU EMACS). (My ESS console says 'U' in the EMACS
> modeline. It means I'm encoding in UTF-8. I tried '1', ISO-8859-1,
> also called Latin-1.)
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