Vectors, lists, arrays, matrices and data frames -- a look at five of the most fundamental data structures built into R. Among my colleagues, R is one of the fastest-growing programming languages.

Sixty years ago, on May 1, 1964, at 4 am in the morning, a quiet revolution in computing began at Dartmouth College. That’s when mathematicians John G. Kemeny and Thomas E. Kurtz successfully ran the ...

The Affordable Care Act employs two main strategies for expanding health insurance coverage--first, by extending Medicaid to millions of additional low-income people, and second, by allowing ...