Hi, I need Beta binomial and Beta negative binomial functions but in R there is only SuppDists package which provide this distributions using a limited parameter space of the generalized hypergeometric distribution (dghyper & Co.) which provide a limited parameter space for Beta binomial and Beta negative binomial functions (e.g. alpha + beta <1 in the Beta negative binomial).
I've done a checkout to R svn to seek the code for the implementation of distribution functions (dbinom et al.) but I haven't succeed. I don't know how difficult could be to implement Beta binomial and Beta negative binomial functions having the PDF and CDF functions but I'm interested in implementing it. I have programming skills but I don't know much about R internals. Where is the code? Can I implement these new functions inside stats package following the same patterns as other probability distributions? Yours, -- Joan Maspons CREAF (Centre de Recerca Ecològica i Aplicacions Forestals) Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Catalonia Tel +34 93 581 2915 j.masp...@creaf.uab.cat http://www.creaf.uab.cat ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
