[R] Noob: How to upgrade from 3.0.2 on Ubuntu 14.04 LTS?

[brian piercy]

One of my favorite blogs (AnalyzeCore) uses the dplyr library which fails
in my environment (R 3.0.2.) I've tried upgrading my R package to get
around this issue, to no avail. I know I'm making a simple mistake but
haven't solved it. A simple "$ sudo apt-get install r-base --upgrade"
didn't get the job done.

How do I upgrade R in a Linux distro?

Many thanks,
@brianpiercy

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