A big list of the things R can do by David Smith.
From the post:
R is an incredibly comprehensive statistics package. Even if you just look at the standard R distribution (the base and recommended packages), R can do pretty much everything you need for data manipulation, visualization, and statistical analysis. And for everything else, there’s more than 5000 packages on CRAN and other repositories, and the big-data capabilities of Revolution R Enterprise. A
As a result, trying to make a list of everything R can do is a difficult task. But we’ve made an effort in this list of R Language Features, a new section on the Revolution Analytics website. It’s broken up into four main sections (analytics, graphics and visualization, R applications and extensions, and programming language features), each with their own subsections:
As much for my benefit as yours. If I don’t write it down, I will remember it but not where I saw it. 😉