[Rd] p-generalized normal distribution

[Ben Bolker]

Steve Kalke <steve.kalke <at> uni-rostock.de> writes:

> I would like to know if there is an R-package available for 
> computing the density, distribution function,
> quantiles and random 
> numbers of the p-generalized normal distribution or 
> if somebody is already working on it.

  I haven't been able to find out what the p-generalized normal
distribution is: the only paper I can find is

Sinz, F., and M. Bethge$. 2009. Characterization of the p-generalized 
normal distribution. Journal of Multivariate Analysis 100:817-820. 
doi: 10.1016/j.jmva.2008.07.006.

and I don't have access to it at the moment (although it does
at least hint that the required distribution is multivariate;
maybe p-dimensional?).  

 Is it the same as this?

Goodman, I. R., and S. Kotz. 1973. Multivariate θ-generalized normal
distributions. Journal of Multivariate Analysis 3:204-219. doi:
10.1016/0047-259X(73)90023-7.

  Where can we find a description?

  (Short answer: as far as I can tell, it doesn't exist in
R, but it would be good to have more information ...)