[Numpy-discussion] please change mean to use dtype=float
oliphant at ee.byu.edu
Tue Sep 19 17:48:05 CDT 2006
Sebastian Haase wrote:
>I just had someone from my lab coming to my desk saying:
>"My god - SciPy is really stupid ....
>An array with only positive numbers claims to have a negative mean !! "?
>I was asking about this before ... the reason was of course that her array was
>of dtype int32 and had many large values to cause an overflow (wrap
>Now that the default for axis is None (for all functions having an axis
>can we please change dtype to default to float64 !?
The default is float64 now (as long as you are not using
I suppose more appropriately, we could reduce over float for integer
data-types when calculating the mean as well (since a floating point is
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