[R] Instructions for upgrading R on ubuntu

[Zhang Weiwu]

On Sun, 15 Sep 2013, Andrew Crane-Droesch wrote:

> The c2d4u PPA is the main search result when googling "upgrade R 3.0.1 
> ubuntu".

And it should be, because it is more likely that a PPA re-distribution works 
better for Ubuntu than a general distribution, even if it is an exceptional 
case with this software this time.

You must be in bad need of 64-bit memory access or long vectors†, to do a 
manual upgrade just one month ahead of Ubuntu's own maintenance upgrade 
(13.10) with contains R-3.0.1.

† They are the major features offered by R-3, so I guess most users are 
unlikely argued into hurrying an upgrade from R-2.x
http://www.r-bloggers.com/r-3-0-0-is-released-whats-new-and-how-to-upgrade/