On 12/05/2010 9:48 AM, Erich Studerus wrote:
Thanks. Since the encoding of x is unknown (Encoding(x) gives "unknown"), I
tried
iconv(x, "", "UTF-8")
Unfortunately, accented letters are still not printed in the final PDF
output.
I think I gave you incomplete advice.
The line above will convert the native encoding to UTF-8. That's
probably fine, but it's not actually helpful.
The problem is that when R outputs a vector, it will convert it back to
the native encoding, unless you take action to stop that. If you don't
mind changing your document for Windows, you can put
\usepackage[cp1252]{inputenc}
into the preamble, and use the Windows native CP1252 encoding
throughout. If you want something that will work in UTF-8 on Windows,
you need to say
options(encoding="UTF-8")
*before* running Sweave. (If you're running Sweave from the command
line using "R CMD Sweave" then I don't know if you can specify the
output encoding; it won't help to do it in the document code chunks).
You also need to put the line
\usepackage[utf8]{inputenc}
into the document preamble, but it sounds as though Lyx has already done
that for you.
Duncan Murdoch
Regards,
Erich
-----Ursprüngliche Nachricht-----
Von: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
Gesendet: Mittwoch, 12. Mai 2010 15:27
An: Erich Studerus
Cc: r-help@r-project.org
Betreff: Re: [R] Input encoding problem when using sweave with xetex
On 12/05/2010 8:37 AM, Erich Studerus wrote:
Hello
Because I want to use different true type fonts with latex, I'm using the
XeTeX typesetting engine for my sweave-documents. I'm using Lyx with
Sweave
on a Windows 7 PC and have set up LyX to work with XeTeX according to the
following instructions:
http://wiki.lyx.org/LyX/XeTeX
Because the input file for XeTeX is assumed to be in UTF-8 encoding, I set
the encoding under LyX - Tools - Language Settings - Language to "Unicode
(XeTeX) (utf8)". Accented letters that I write into the LyX-document are
correctly typeset in the final PDF-document. However, character strings
with
accented letters that are read from Excel-files or other sources from
within
R during the LyX-Sweave document compilation are not. For instance, the
German umlauts of the following example are not correctly typeset, when
"Unicode (XeTeX) (utf8)" is used as input encoding.
<<echo=F>>=
require(gdata)
x <- read.xls("http://www.schwerhoerigkeit.pop.ch/hoergeraete_test.xls";,
stringsAsFactors = F)[2,2]
x
@
I do not have this problem with a Mac computer . I guess, this is because
R
under Windows does not use UTF-8 encoding. I tried to change the
encoding
within R by doing the following
<<echo=F>>=
Encoding(x) <- 'UTF-8'
x
@
Unfortunately, this does not work. Does anybody have solution for this
problem?
You need to use iconv() to change an encoding. What you did just
changes the declared encoding, but doesn't actually change any bits. So
you'd probably get what you want with
x <- iconv(x, "", "UTF-8")
x
(though you may need to declare the input encoding; it is likely CP1252
on Windows).
Duncan Murdoch
Regards,
Erich
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