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It's been suggested I use R, I suppose because my employer is too skint to pay for a copy of Splus. But.... it doesn't seem to be stable. I was trying to do some ordinary regression and stepping through a model. I was trying to set up a model ('kitchen_sink') in which to put all my model parameters. Then I wanted to use step() to see what it would reduce the model to. I

Hi -- subject says all. I just want the code for that function, which I guess was in Venables and Ripley as early as 1994. Well, and for any of the sub-functions that glm.nb calls. I can't install the entire MASS library. If the code for just glm.nb (again, don't want to touch the MASS library, last time I tried to install it was a complete nightmare and fiasco) is somewhere on a

I did some serach around. It seems that ROC curve computation is not supported on R. Anyone has some leads? Thanks. Jason ===== Jason G. Liao, Ph.D. Division of Biometrics UMDNJ School of Public Health 335 George Street, Suite 2200 New Brunswick, NJ 08903-2688 phone (732) 235-9748, fax (732) 235-9777 http://www.geocities.com/jg_liao __________________________________________________ Great

Thanks to all for the input. rgentlem at jimmy.harvard.edu said: >If you really want help -- no, I just thought I'd waste some bandwidth. :-) >If on the other hand you >just want some reassurance that Splus is indeed a commerical package oh gee, thanks, I wasn't sure about that. When I had said: >> R can't handle files named x. If I can use Splus, should I just

:> When I had said: :> >> R can't handle files named x. If I can use Splus, should I just do that? to which I've had the reply (sorry lost attribution but this mailer is cack for handling mailing lists): :It was a problem with data frames (not 'files') named 'x'. ah, well, my typo in the original post. :I may be stating the obvious, but I think some people