Re: [R] fisher table probability

From: Prof Brian Ripley <ripley_at_stats.ox.ac.uk>
Date: Fri 03 Feb 2006 - 09:03:18 EST

On Thu, 2 Feb 2006, array chip wrote:

> Thanks for the suggestion! what if the dimensions of
> the table is greater than 2, say 3x4?

Look at the references quoted on the help page for the formula: the simulation code for p-values in R-devel makes use of it and it is easy to compute via lgamma.

>
> --- Prof Brian Ripley <ripley@stats.ox.ac.uk> wrote:
>
>> On Wed, 1 Feb 2006, array chip wrote:
>>
>>> Hi, is there a way to generate the table's
>> probability
>>> when doing the fisher's exact test on a 2x2 table?
>> The
>>> fisher's exact test gives the p value, but not the
>>> probability for the table.
>>
>> Call dhyper, as fisher.test itself does.
>>
>> --
>> Brian D. Ripley,
>> ripley@stats.ox.ac.uk
>> Professor of Applied Statistics,
>> http://www.stats.ox.ac.uk/~ripley/
>> University of Oxford, Tel: +44 1865
>> 272861 (self)
>> 1 South Parks Road, +44 1865
>> 272866 (PA)
>> Oxford OX1 3TG, UK Fax: +44 1865
>> 272595
>>
>
>
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-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Received on Fri Feb 03 09:19:30 2006

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