The Ubuntu archives on CRAN are signed with a key with ID E084DAB9. R version 3.2.1 (2015-06-18) -- "World-Famous Astronaut" Copyright (C) 2015 The R Foundation for Statistical Computing Platform: x86_64-pc-linux-gnu (64-bit) R is free software and comes with ABSOLUTELY NO WARRANTY.You are welcome to redistribute it under certain conditions.
To add the key to your system with one command use (thanks to Brett Presnell for the tip): Some people have reported difficulties using this approach.
The issue is usually related to a firewall blocking port 11371.
For Ubuntu 14.04, run the following command to add the correct repository to If you are running a different Ubuntu version, consult this document for the correct repository to add.
To authenticate packages downloaded using APT, we have to add a public key.
When R is installed, it automatically installs a number of default packages, but in order to do anything truly meaningful in R you will probably need to install extra packages.
It is important to have at least 1 GB of RAM available in order to install many packages.If you want to host any of your Shiny code on your Droplet, you may want to install a Shiny Server using this tutorial.In this guide, we went through the steps required to set up R on an Ubuntu 14.04 Droplet.If your Droplet is running a different operating system, most of the instructions will still apply, but you may need to modify some of the commands.Following this guide to completion should take about 10-15 minutes.Users who need to update one of these R packages (say r-cran-foo) should first make sure to obtain all the required build dependencies with Please notice that the maintainers are not necessarily themselves users of these packages, so positive or negative feedback through the usual channels (see below) would be appreciated.