[Numpy-discussion] please change mean to use dtype=float
Travis Oliphant
oliphant.travis at ieee.org
Tue Sep 19 22:31:07 EDT 2006
Charles R Harris wrote:
>
> Speed depends on the achitecture. Float is a trifle slower than double
> on my Athlon64, but faster on PPC750. I don't know about other
> machines. I think there is a good argument for accumlating in double
> and converting to float for output if required.
Yes there is. It's just not what NumPy ever does so it would be an
exception in this case and would need a more convincing argument in my
opinion. You can always specify the accumulation type yourself with
the dtype argument. We are only talking about what the default should
be.
-Travis
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