"Duncan Murdoch" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]
> Why did you change the parameters? If you used the same ones as above, > you get > > > sghyper(a=-1, k=-1, N=5) > $title > [1] "Generalized Hypergeometric" > > > $Mean > [1] 0.2 > ..... > > I don't know if those values are correct, but at least they aren't > nonsensical like the ones you report from Mathematica. > > Duncan Murdoch > >> But the thing I do not understand is which is ALPHA, which is BETA and which is N? Could I please ask you show the R command to generate this plot from NIST web site (the second one in the first row)? http://www.itl.nist.gov/div898/software/dataplot/refman2/auxillar/gif/bnbpdf.gif I can produce the plot using Mathematica command. For example, looking at the plot for ALPHA=3, BETA=0.5, k=3, (again, the second plot in the first row), the following is the command in Mathematica to get the same plot: http://12000.org/tmp/010608/beta1.PNG I tried this in R, but I really do not know to tell this command in R which is alpha, which is beta and which is k? thanks again Nasser ______________________________________________ R-help@r-project.org 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.