Install latest R on ubuntu 18.04

Ubuntu 18.04

$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
$ sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/'
$ sudo apt update
$ sudo apt install r-base
$ R --version

Ubuntu 19.04

$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
$ sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu disco-cran35/'
$ sudo apt update
$ sudo apt install r-base
$ R --version

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