On Mon, Nov 3, 2008 at 5:57 PM, Maurizio Teli <[log in to unmask]> wrote: > Maybe the sender is not well identified, but r-forge and the r-project > are really recognized websites in the free software/open source world, > and starting there, and looking for "RQDA" you can find the link the > sender pointed to. I've been using R for quite a while now and I haven't had any virus and/or other serious problems. I initially found the suite a bit tricky to use. It's not as easy, for example, as Statistica but a few days of playing around with test data fixed that. And, of course, the price is right! That said, great care should always be exercised with downloaded software as the recent "scandal" involving updates for a well-known free download manager emphasizes. Ann's warning is, I think, very appropriate in today's circumstances. Mike Michael Mellody Ecclesia Knowledge Management