[R] binom.test()

Thomas Lumley tlumley at u.washington.edu
Mon Sep 23 04:42:53 CEST 2002


On Mon, 23 Sep 2002, Robin Hankin wrote:

> Hello everybody.
>
> Does anyone else find the last test in the following sequence odd?
> Can anyone else reproduce it or is it just me?
>

Actually the previous explanation is completely bogus (I plead jet lag).
The problem is in handling 2-tailed p-values, which is done by looking for
the value in the opposite tail where the density is <= (1+1e-7) times the
observed density.  The problem is that the observed density is 0.

It should be possible just to change <= to <, possibly increasing the
fudge factor from 1e-7 but perhaps not.

	-thomas

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