Dear list,
Is there an incomplete gamma function in R that can take negative
arguments? If not, pointers to its implementation will be greatly
appreciated.
I know the 'Igamma' function in 'zipfR' package. However, Igamma(a,x)
only takes positive x. (When x is negative, this function should return
a value that is complex. Matlab function 'gammainc' can handle negative
arguments. But it is an internal Matlab function, so I don't get to see
how it is done.)
Thanks! X.W.
______________________________________________
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.
