Say I can pass several commands to my program, and each command corresponds to a function.How can I call this function without a lot of if-else? To add a little seasoning, I also need to pass ...

Standard Four-Figure Mathematical Tables: including many New Tables, Trigonometrical Functions for Radians, Inverse Trigonometrical and Hyperbolic Functions, and an Extended Table of Natural ...

R data.table code becomes more efficient — and elegant — when you take advantage of its special symbols and functions. With that in mind, we’ll look at some special ways to subset, count ...