get key through proxy

gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys E084DAB9

R - how-to-install-r-jgr-and-deducer-in-ubuntu

You need this:

http://www.seancsb.net/statistical/installing-jgr-and-deducer And a lot of time....

OR if you haven't got a lot of time use this script. Run the script as root, just sudo does NOT work properly.

R - add cran as ubuntu repository and update R

For 11.04

• sudo add-apt-repository "deb http://cran.rakanu.com/bin/linux/ubuntu natty/"
• gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9
• gpg -a --export E084DAB9 | sudo apt-key add -
• sudo apt-get update
• sudo apt-get upgrade

cran.rakanu.com is my favourite cran mirror, choose one near you (from here)