Since not so long, I upgraded the version of R that is included in the Debian repositories (2.11.1 in Squeeze) and I was very happy with it since 2010. But there was some packages that I could not install and then, I decided to upgrade R despite of having to upgrade every package too (I have more than 1 GB in my home R packages folder).
There’s nothing new or tricky about how to upgrade, the awesome guys of CRAN always brings an answer for our needs.
FIRST PART: ADD R BACKPORTS:
First, open a Terminal and open the sources.list file:
$ gksudo gedit /etc/apt/sources.list
Then, add these lines at the bottom of the file (Note, I use the UCLA server, but this can be easily changed taking a look here for the mirrors):
## R BACKPORTS
deb http://cran.stat.ucla.edu/bin/linux/debian squeeze-cran/
#deb-src http://cran.stat.ucla.edu/bin/linux/debian squeeze-cran/
The original set of instructions can be seen here
SECOND PART: RENAME THE R PACKAGES FOLDER:
There’s a folder where R uses to store the packages we download, just rename it to the current version of R.
For example, mine was “2.11” and then I just renamed it to “2.14” (or “2.15“, without quotes) and was inside this path:
Remember that some packages also needs to install some files in folders that belongs to the root, so, I would recommend to open R in sudo mode (only if you’re sure about what you’re doing :P) just by executing R this way: “sudo R” and then, in the R console type :
THIRD PART: SECURE APT:
The Debian backports archives on CRAN are signed with the key ID 381BA480, to add them, in a Terminal prompt type:
gpg --keyserver pgp.mit.edu --recv-key 381BA480
gpg -a --export 381BA480 > jranke_cran.asc
sudo apt-key add jranke_cran.asc
FOURTH PART: UPDATE AND UPGRADE R:
Save the file and you can either enter to Synaptic, update the packages list and then just upgrade the packages or in a terminal type:
sudo apt-get update
sudo apt-get upgrade
And that’s all.
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