tm package on R

R 2.11 is needed by tm (tm_0.5-4.1.tar.gz) but only R 2.10 is in the lucid ubuntu repo

so

http://ubuntuforums.org/showthread.php?t=639710

deb http://cran.r-project.org/bin/linux/ubuntu lucid/

gpg --keyserver subkeys.pgp.net --recv-key E2A11821 
   gpg -a --export E2A11821 | sudo apt-key add - 

My R libraries installed to

$HOME/R/x86_64-pc-linux-gnu-library/2.11

So you need to add this path in the 'R console' Run configuration

then I got a 'checking for xml2-config... no' error when doing

   install.packages('XML')

so do 

$ sudo apt-get install libxml2-dev