I use R 2.13 from the CRAN apt repo for Ubuntu 10.04, and I\'m trying to install Deducer, which requires JGR/rJava, but rJava refuses to build/install, complaining about being u
Dah, not long after posting I found the answer here:
http://r-interface.blogspot.com/2012/04/install-r-jgr-and-deducer-in-ubuntu.html
Although I already had Sun Java installed, the key was to run update-java-alternatives
to actually switch to Sun Java first before running javareconf:
sudo update-java-alternatives -s java-6-sun
sudo R CMD javareconf