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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