Installing latest version of R-base

I have been unsuccessfully trying to install the latest version (2.15.2) of r-base. Apparently, R package Rcpp would not install for R version 2.14.1 - the version that installs for me.

I am not sure what/how/where to change my installation attempts which appear below. Please note that I am using ubuntu-12.04.1-server-i386.

The current installed version is R version 2.14.1 (2011-12-22):

$ sudo apt-get install r-base
Reading package lists... Done
Building dependency tree       
Reading state information... Done
r-base is already the newest version.

Including version information doesn't help:

$ sudo apt-get install r-base=2.15.1-5ubuntu1
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Version '2.15.1-5ubuntu1' for 'r-base' was not found

Changes based on CRAN Ubuntu instructions from http://cran.r-project.org/bin/linux/ubuntu/README:

1. Added to /etc/apt/sources.list

   deb http://lib.stat.cmu.edu/R/CRAN/bin/linux/ubuntu quantal/
   

2. Update and install

   $ sudo apt-get update
   $ sudo apt-get install r-base
   Reading package lists... Done
   Building dependency tree       
   Reading state information... Done
   Some packages could not be installed. This may mean that you have
   requested an impossible situation or if you are using the unstable
   distribution that some required packages have not yet been created
   or been moved out of Incoming.
   The following information may help to resolve the situation:
   
   The following packages have unmet dependencies:
    r-base : Depends: r-base-core (>= 2.15.2-1quantal2) but it is not going to be installed
             Depends: r-recommended (= 2.15.2-1quantal2) but it is not going to be installed
             Recommends: r-base-html but it is not going to be installed
   E: Unable to correct problems, you have held broken packages.
   

None of the above worked for me so I am copying the answer from https://stackoverflow.com/questions/16093331/how-to-install-r-version-3-0

Uninstall old R:

sudo apt-get remove r-base-core

Then:

sudo add-apt-repository "deb http://cran.rstudio.com/bin/linux/ubuntu $(lsb_release -sc)/"

Then copy/paste these commands into the command line:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
sudo add-apt-repository ppa:marutter/rdev
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install r-base

Which worked for me

Here's how I did it;

As already mentioned in the question, I went through the steps in UBUNTU PACKAGES FOR R instructions to add the repository, and did a apt-get update, and then

apt-cache showpkg r-base 

which would give something like

Package: r-base
Versions: 
3.0.2-1raring0 (/var/lib/apt/lists/cran.rstudio.com_bin_linux_ubuntu_raring_Packages)
 Description Language: 
                 File: /var/lib/apt/lists/cran.rstudio.com_bin_linux_ubuntu_raring_Packages
                  MD5: 5787ca79ed716232c4cc2087ed9b425b

3.0.1-6raring0 (/var/lib/apt/lists/cran.rstudio.com_bin_linux_ubuntu_raring_Packages)
 Description Language: 
                 File: /var/lib/apt/lists/cran.rstudio.com_bin_linux_ubuntu_raring_Packages
                  MD5: 5787ca79ed716232c4cc2087ed9b425b

and the I did a

 sudo apt-get install -f r-base=3.0.2-1raring0

and done.