Remove-and-install-new-version

# All these are for Ubuntu 16.04
# Step1 Completely Remove old R
# remove all things binary and config
$ sudo apt-get purge r-base-core
2. Add R repository

Second, we’ve got to add a line to our /etc/apt/sources.list file. This can be accomplished with the following. Note the “xenial” in the line, indicating Ubuntu 16.04. If you have a different version, just change that.

$ sudo echo "deb http://cran.rstudio.com/bin/linux/ubuntu xenial/" | sudo tee -a /etc/apt/sources.list

3. Add R to Ubuntu Keyring

First:

$ gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9

Then:

$ gpg -a --export E084DAB9 | sudo apt-key add -

4. Install R-Base

Most Linux users should be familiar with the old…

$ sudo apt-get update
$ sudo apt-get install r-base r-base-dev