How to install R 3.1.2 on Linux Mint 17.1

Question

I have installed the latest version of Linux Mint (17.1) in my computer. I installed R version 3.0.2. However, when I try to install the package xslsx, or dplyr, the system

Answer 1

Follow the instructions posted here: How to upgrade R in ubuntu?

Note that Linux Mint 17.1 relies upon the Ubuntu Trusty package base, so you will need to use trusty/ as the Ubuntu version. Also, make sure to use the command sudo apt-get upgrade r-base at the end of the procedure, not just sudo apt-get upgrade, otherwise R won't be upgraded.

Your question may be considered off-topic, but it can be helpful to other Mint users.