...R is not a spectator sport and that is the beauty of it.

~ Antonio Paredes

R is a free open source software package for statistical computing and graphics. Visit the R home page here. Bioconductor is an R project for bioinformatics. Both projects consist of a core set of functions and hundreds of user written packages, From a computer science point of view, R is an interpreted, interactive functional language with two levels of object orientation called S3 (loose object orientation) and S4 (rigorous object orientation). R uses both S3 and S4, while Bioconductor is built around S4 classes.

Resources for Getting to Know R

Nerdy cartoon courtesy of xkcd.com

The truth about anova

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