[R] Sweave (R?) font encoding problems

From: Luís Torgo <ltorgo_at_liacc.up.pt>
Date: Tue 01 Nov 2005 - 02:46:24 EST

Dear R list,

I'm having some problems with font encodings when using R+Sweave+Latex in my native language: Portuguese.

My environment:
Kubuntu 5.10 Linux
$> uname -a
Linux nassa 2.6.12-9-686 #1 Mon Oct 10 13:25:32 BST 2005 i686 GNU/Linux

R> R.version

         _
platform i486-pc-linux-gnu

arch     i486             
os       linux-gnu        
system   i486, linux-gnu  
status                    
major    2                
minor    1.1              
year     2005             
month    06               
day      20               

language R
R> Sys.getlocale()
[1]
"LC_CTYPE=pt_PT.utf-8;LC_NUMERIC=C;LC_TIME=pt_PT.utf-8;LC_COLLATE=pt_PT.utf-8;LC_MONETARY=pt_PT.utf-8;LC_MESSAGES=pt_PT.utf-8;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C" R> localeToCharset()
[1] "ISO8859-1" Here is a small example trying to replicate my problems:

File:exp.Rnw

---

\documentclass[10pt,twoside]{article}
\usepackage[dvips]{graphicx}
\usepackage[portuges]{babel}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}

\begin{document}

\section{Introdução}

Isto é uma experiência.

\begin{figure}[b]
\centering

<<echo=false,fig=true,width=10,height=10>>= barras(1)
@
\caption{Distribuição dos valores percentuais.}
\label{fig:idade}
\end{figure}

\end{document}

---

The problem occurs when I Sweave this file using the command: R> Sweave('exp.Rnw')

The generated exp.tex file gets these contents:

---

\documentclass[10pt,twoside]{article}
\usepackage[dvips]{graphicx}
\usepackage[portuges]{babel}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}

\usepackage{/usr/lib/R/share/texmf/Sweave}
\begin{document}

\section{Introdução}

Isto é uma experiência.

\begin{figure}[b]
\centering
\includegraphics{exp-001}
\caption{Distribuição dos valores percentuais.}
\label{fig:idade}
\end{figure}

\end{document}

---

All Portuguese characters were "spoiled". So apparently the Sweave function is "translating" my original font encoding

I suspect that this is a problem related to the recent internationalization changes in R, as this same file/process was previously (around a year ago I think) working correctly for me.

I've read several documentation on these internationalization issues in R and browsed the mailing list. As a result, because initially I didn't have R working with the pt_PT.utf-8 locale, I've installed the PT language support package for my OS, expecting that this would solve the "problem". Apparently I'm missing something else, so I wonder if someone could give me a hint on how to solve this.

Thanks,
Luis Torgo

-- 
Luis Torgo
    FEP/LIACC, University of Porto   Phone : (+351) 22 339 20 93
    Machine Learning Group           Fax   : (+351) 22 339 20 99
    R. de Ceuta, 118, 6o             email : ltorgo@liacc.up.pt
    4050-190 PORTO - PORTUGAL        WWW   : http://www.liacc.up.pt/~ltorgo

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Received on Tue Nov 01 03:15:40 2005