[SciPy-dev] stats.distributions.poisson loc parameter : is it wise ?

[Pierre GM]

On Aug 6, 2009, at 5:34 PM, Robert Kern wrote:
>
> Every probability distribution can be generalized to accept a location
> and scale parameter even if their standard treatments do not.
>
>  pdf(x; loc,scale) -> pdf((x-loc)/scale)/scale

Agreed, as long as we are talking about *continuous* distributions.
The behavior is quite different for *discrete* distributions. Even if  
the scale is simply discarded already, using a location will probably  
NOT give the expected result