Programming with Data: A Guide to the S Language

Rating:
Summary: A good tutorial on the S programming language.
Review: This is the first book I've found that approaches the S programming language as more than an inconvenient detail that you have to learn to get to the cool statistics functions in "S-Plus." It's much more accessible than most of the books on S or S-Plus for people who aren't actually statisticians, but need to use the language for some reason.