Good statistical software?
I've studied social sciences and newbie in Linux (using Ubuntu in home and windows XP at work), but I was wondering are there any good statistical free/open source software applications?
I downloaded R programming environment but it was too difficult to use... In university we used SPSS, but the license is very expensive and for example in my work I don't need all the functions. (I'm working in a very small company and at the moment using Excel...)
I would be very happy if you have any ideas... please. Excel's driving me crazy...