In that example, we define an anonymous function that "multiplies" its argument by seven, then call it with an argument of six. But, of course, Python has overloaded the multiplication operation, so: ...

Python, for all its power and popularity, has long lacked a form of flow control found in other languages—a way to take a value and match it elegantly against one of a number of possible conditions.

Recall that R is a statistical programming language—a language designed to do things like t-tests, regression, and so on. The core of R was developed during the 1970s and since then, many libraries ...