Re: [Rd] Sweave output encoding in R-2.10.0beta on Windows (Rgui <-> Rterm)

[Martin Becker]

Ok,

apparently the most interesting attachement did not pass the filters 
(probably because of the utf-8 encoding...).
Maybe it is still helpful to copy&paste the Sweave output (with uft-8 
part) for R-2.10.0beta invoked via Rgui --vanilla:

\documentclass{article}
\usepackage{c:/Programme/R/R-2.10.0beta/share/texmf/Sweave}
\usepackage[latin1]{inputenc}
%\usepackage[utf8x]{inputenc}
\usepackage[german]{babel}

\begin{document}
\begin{Schunk}
\begin{Sinput}
> Umlaute <- c("ä", "ö", "ü", "ß")
> Umlaute
\end{Sinput}
\begin{Soutput}
ÿþ[1] "ä" "ö" "ü" "ß"ÿþ
\end{Soutput}
\end{Schunk}
\end{document}

Best wishes,

Martin



Martin Becker wrote:
Dear developers,

I have come across a (somewhat strange) change in the encoding of 
Sweave output from R-2.9.2pat to R-2.10.0beta (apparently specific to 
Rgui) on Windows installations. Of course, the NEWS file contains 
quite a few changes concerning encoding, but I was not able to locate 
an entry which explains the observed behaviour. I am not very familiar 
with encodings/locales/codepages, but I will try to explain my 
observations as best I can.

In R-2.9.2pat, when invoking R via Rgui --vanilla (output of 
seesionInfo() below), the output of Sweave for .rnw files containing 
german umlaute (latin1-encoded) is again latin1-encoded (the resulting 
.tex-file compiles with \usepackage[latin1]{inputenc} and 
\usepackage[german]{babel}).
In R-2.10.0beta, however, when invoking R via Rgui --vanilla (output 
of seesionInfo() below), some of Sweave's output (more precisely, 
Soutput environments containing german umlaute, Sinput environments 
with german umlaute are still latin1) is utf-8 encoded (with some 
extra characters at the start and the end, which could be BOMs). 
Surprisingly, when R is invoked from (Windows) command line (R 
--vanilla or Rterm --vanilla), the encoding is completely latin1 again 
(as in R-2.9.2pat). So, the change to utf-8 encoding for parts of 
Sweave's output seems to be specific to Rgui.

Of course, I can work around this problem by using Rterm instead of 
Rgui when Sweav'ing, but I am not sure if the current behaviour of R 
via Rgui is as intended.
I will try to attach the .rnw - file as well as the resulting .tex - 
files (and hope, that the attachements pass through).

Best wishes,

Martin



sessionInfo() for R-2.9.2pat (same for Rgui, R, Rterm):
R version 2.9.2 Patched (2009-09-24 r50041)
i386-pc-mingw32

locale:
LC_COLLATE=German_Germany.1252;LC_CTYPE=German_Germany.1252;LC_MONETARY=German_Germany.1252;LC_NUMERIC=C;LC_TIME=German_Germany.1252 


attached base packages:
[1] stats graphics grDevices utils datasets methods base

sessionInfo() for R-2.10.0beta (same for Rgui, R, Rterm):
R version 2.10.0 beta (2009-10-11 r50037)
i386-pc-mingw32

locale:
[1] LC_COLLATE=German_Germany.1252 LC_CTYPE=German_Germany.1252 [3] 
LC_MONETARY=German_Germany.1252 LC_NUMERIC=C [5] 
LC_TIME=German_Germany.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base

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--
Dr. Martin Becker
Statistics and Econometrics
Saarland University
Campus C3 1, Room 206
66123 Saarbruecken
Germany

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