2010/3/5 Pierre GM <pgmdevl...@gmail.com>:
> 'm'fraid no. I gonna have to investigate that. Please open a ticket with a 
> self-contained example that reproduces the issue.
> Thx in advance...
> P.

I would like to stress the fact that imo this is maybe not ticket and not a bug.

The issue arises when calling a.max() or similar of empty arrays a, i.e., with:

>>> 0 in a.shape
True

Opposed to the .prod() of an empty array, such a .max() or .min()
cannot be defined, because the set is empty.  So it's fully correct to
let such calls fail.  Just the failure is a bit deep in numpy, and
only the traceback gives some hint what went wrong.

I posted something similar also on the matplotlib-users list, sorry
for cross-posting thus.

fwiw,
Friedrich
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