>>>>> "PD" == Peter Dalgaard <[EMAIL PROTECTED]>
>>>>> on 24 Nov 2004 18:32:15 +0100 writes:
PD> [EMAIL PROTECTED] writes:
>> > > dhyper() does not allow non-integer values for input
>> parameters m and n.
>> >
>> > this is in contrast to the other functions in the
>> _hyper() "family",
>>
>> I would argue that the bug was in the other functions. If
>> not, there is a= =20 bug in the documentation, which
>> gives no way to tell what the result=20 should mean for
>> non-integer m, n, k.
PD> My initial reaction too (and surely it is not a bug that
PD> functions behave inconsistently in regions where they
PD> are not documented to work at all), but on the other
PD> hand, noninteger m,n do appear to give a well-defined
PD> distribution, and perhaps there's a way of making sense
PD> of it? I wouldn't think it corresponds to noncentral
PD> hypergeometric distributions.
I'd tend to pretty much agree here.
Incidentally (slightly related, but prompted by something completely different),
just these hours I've been extending
choose(r, k)
to work not just for integer but all positive 'n'.
Martin
______________________________________________
[EMAIL PROTECTED] mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
