2012/6/1 Tim Triche, Jr. <tim.triche@gmail.com>

> It's in VGAM, remember?  Not a bug.
>
> --
> *A model is a lie that helps you see the truth.*
> *
> *
> Howard Skipper<http://cancerres.aacrjournals.org/content/31/9/1173.full.pdf>
>
>
Yes, it's a wish, not a bug. I would like a faster implementation in c and
including quantile function. pbetabin calls qbetabin and sums from 0 to q
using a loop. It can be avoided using genhypergeo function from hypergeo
package [1] but it adds a dependency and for some parameters it doesn't
converge.

In the other hand I think that these functions should be implemented in a
more neutral place to avoid that packages interested in this distribution
have to depend on VGAM. I'm also interested in the Beta negative binomial
distribution which I think it's not implemented (this will be the second
round). And last but not least I want to learn.

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.maspons@creaf.uab.cat
http://www.creaf.uab.cat


[1] https://stat.ethz.ch/pipermail/r-devel/2012-March/063560.html

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