[R-sig-Debian] How to upgrade from 2.15.1 to 2.15.1 patched?

[Marius Hofert]

Hi,

I would like to upgrade R-2.15.1 to R-2.15.1 patched (under Ubuntu 12.04). What's
the recommended way to do so?

I did the following steps for installing R under Ubuntu 12.04 (as far as I
remember, Dirk Eddelbuettel recommended this and helped me on several occasions
with the installation):

1) sudo emacs /etc/apt/sources.list
2) add:
   deb http://stat.ethz.ch/CRAN/bin/linux/ubuntu precise/
3) do:
   gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9
   gpg -a --export E084DAB9 | sudo apt-key add -
4) do:
   sudo apt-get update
   sudo apt-get install r-base

Cheers,

Marius