I would just like to add a comment to this thread that a good reason to use R is that it's so ***EASY*** to use! You can get R to do what ***you*** want.
E.g. I want to set my students an exercise in which they simulate a data set from a certain distribution (using the inverse probability transform), plot a histogram of the resulting data on a density scale, and then superimpose a graph of the probability density function. The class I am teaching uses Minitab (which is a pretty good package, but ....). The last item --- superimpose a graph --- CANNOT be done in Minitab. Fitted densities from a list specified by Minitab can be superimposed, but not a density that you have specified which is off that list. It's incredibly frustrating. In R, of course, it's so easy that falling off a log is difficult by comparison. cheers, Rolf Turner [EMAIL PROTECTED] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.