[Numpy-discussion] What should be the result in some statistics corner cases?

Stéfan van der Walt stefan at sun.ac.za
Mon Jul 15 20:22:26 EDT 2013


On Mon, 15 Jul 2013 08:33:47 -0600, Charles R Harris wrote:
> On Mon, Jul 15, 2013 at 8:25 AM, Benjamin Root <ben.root at ou.edu> wrote:
> 
> > This is going to need to be heavily documented with doctests. Also, just
> > to clarify, are we talking about a ValueError for doing a nansum on an
> > empty array as well, or will that now return a zero?
> >
> >
> I was going to leave nansum as is, as it seems that the result was by
> choice rather than by accident.

That makes sense--I like Sebastian's explanation whereby operations that
define an identity yields that upon empty input.

Stéfan



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