Any tips on open source stats software?

I’m up to my neck in bits of paper at moment trying to do lots of number crunching for job at work. Does anyone know of any decent open source statistics software which can run on a macintosh? (especially non-parametric stuff)

Search this page for “Stat”, there’s 3 of them:

http://python.kw.ac.kr:8080/python/search/Parnassus-Condensed-by-Date.html

Or go here and poke around:

http://www.vex.net/parnassus/

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thanks v much Fligh% - having a look now