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bash has long been the go-to shell for quick one-off scripts. If you're in the midst of writing such a script and could use a handy reference of the built-in shell variables, than this excerpt from ...
Every so often you'll need to configure a Python installation. It's a good idea to know where things are and how to point to them if you have to. In this excerpt from Learning Python by Mark Lutz you'...
If you're eager to learn more about R and want a taste of what it's like, here's an introduction to the basic operations in R from Joseph Adler's R in a Nutshell.
Let’s get started using R....
This is a discussion of what data doesn't do: that is, of the various ways in which measurement and interpretation themselves can transform data. This is not a treatise on "lies, damn lies, and stati...
If you want to exchange the values of two scalar variables, but don't want to use a temporary variable, use list assignment to reorder the variables.
($VAR1, $VAR2) = ($VAR2, ...