[R] BUG: choose function

[Benilton Carvalho]

well,

choose(n, k) should actually return:

factorial(n)/(factorial(n-k)*factorial(k))

R-2.6.0 works just fine for me.... so does R-2.5.1.... so does  
R-2.4.1....

b

On Nov 22, 2007, at 8:04 PM, Luis Salasar wrote:

> Hi,
>
>  I have used the function choose(n, k) sometimes, and i realized  
> that it doesn't work properly for n < 0. For example, if one tries  
> choose(-1, 3), it should be returned the value (-1)^3 = -1, since  
> choose (-1, 3) = (-1)*(-2)*(-3)/3! = (-1)^3, but indeed R returns  
> the value 0. I am using R version 2.5.1, it don't know if this  
> little bug has already been solved in the new version. Thanks,
>
>  Luis Ernesto.
>
>
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