I have installed R 3.3.3 and now trying to update it to the version 3.4.1. Used the following instructions:
sudo -H gedit /etc/apt/sources.list deb http://cran.rstudio.com/bin/linux/ubuntu precise/ sudo apt-get update sudo apt-get install r-base
And after all, the version installed still is R 3.3.3.
Also tried to delete the file from usr/local/bin/R and install the 3.4.1 version, but didn't work. Thanks,
Roger.