[SciPy-user] Is this a bug in stats.geom.pmf?

Robert Kern robert.kern@gmail....
Mon Jun 25 17:43:27 CDT 2007


Fernando Perez wrote:
> On 6/25/07, Stefan van der Walt <stefan@sun.ac.za> wrote:
> 
>> Which of these one calls "the" geometric distribution is a matter of
>> convention and convenience.
>> """
>>
>> So, do we simply pick one and stick with it?
> 
> I don't really care, but at least the code and the docstring should be
> consistent (and the docstring says that it uses the k>=1 formula).
> Also, the wikipedia page does list the (1-p)**(k-1)*p formula for the
> pmf, FWIW.
> 
> Those who actually use this stuff might want to chime in, but at least
> right now there is an inconsistency between code and docstring.

Flip a coin (p = 0.5; k = 1) and pick either the code or the docstring to fix.
Either is satisfactory.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco


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