deb http://cran.md.tsukuba.ac.jp/bin/linux/ubuntu maverick/
を追加→保存
sudo gedit /etc/apt/sources.list
#公開鍵の入手
gpg --keyserver subkeys.pgp.net --recv-key E2A11821
gpg -a --export E2A11821 | sudo apt-key add -
#install
sudo apt-get update
sudo apt-get install r-base
sudo apt-get install r-base-dev
sudo apt-get install r-cran-*
