Subject: Re: [boost] Fisher Exact test in boost ?
From: John Maddock (boost.regex_at_[hidden])
Date: 2010-07-23 12:15:04
> I will try to perform the implementation myself using the updated
> hypergeometric.
>
> Has anyone pointers to efficient algorithm for two-sided 2x2 Fisher exact
> (or Barnard) test, able to deal with mix of small and large cell counts
> ( 0 and ~ 10,000) ?
> Large cell counts are typically a problem for the classical factorial
> version.
Our hypergeometric implementation will cope with the large factorials OK,
but you're correct that it may be slow for N > 170.
John.