Vectors, lists, arrays, matrices and data frames -- a look at five of the most fundamental data structures built into R.

R syntax can seem a bit quirky, especially if your frame of reference is, well, pretty much any other programming language. Here are some unusual traits of the language you may find useful to ...

From getting subsets of your data to pulling basic stats from your data frame, here's what you need to know.

See how to join two data sets by one or more common columns using base R’s merge function, dplyr join functions, and the speedy data.table package.

Make your R data.table code more efficient and elegant with these special symbols and operators. Plus, learn about the new fcase() function R data.table code becomes more efficient — and elegant ...