[R-sig-Debian] Changing locale?

[Matthieu Stigler]

Hi

I need for a specific application to change the locale of R 2.9.2 in 
Ubuntu 9.04. Trying the example in ?Sys.setlocale:
Sys.setlocale("LC_TIME", "de_DE.utf8")
[1] ""
Warning message:
In Sys.setlocale("LC_TIME", "de_DE.utf8") :
  la requête OS pour spécifier la localisation à "de_DE.utf8" n'a pas pu 
être honorée

I tried the code line for windows on R windows (Sys.setlocale("LC_TIME", 
"German")) and it worked. Does it mean that the basic installation (from 
ubuntu repo) does not provide those locales? Or did I do something wrong?

Thanks a lot!

Matthieu

 sessionInfo()
R version 2.9.2 (2009-08-24)
i486-pc-linux-gnu

locale:
LC_CTYPE=C;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=fr_FR.UTF-8;LC_PAPER=fr_FR.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=fr_FR.UTF-8;LC_IDENTIFICATION=C

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

other attached packages:
[1] Revobase_0.2-1