R is a GPL project; there are free builds for the major operating systems, including a nice graphical environment for OS X.
R is an incredibly useful language -- with only a little bit of effort, you can do sophisticated statistical analyses that would take weeks to implement in other languages. It's also a great tool for developing/prototyping statistical machine-learning algorithms. Highly recommended.
http://cran.r-project.org/
R is a GPL project; there are free builds for the major operating systems, including a nice graphical environment for OS X.
R is an incredibly useful language -- with only a little bit of effort, you can do sophisticated statistical analyses that would take weeks to implement in other languages. It's also a great tool for developing/prototyping statistical machine-learning algorithms. Highly recommended.