[Numpy-discussion] average of array containing NaN

Andrew Straw strawman@astraw....
Mon Jun 25 13:25:58 CDT 2007

Giorgio F. Gilestro wrote:
> I find myself in a situation where an array may contain not-Numbers
> that I set as NaN.
> Yet, whatever operation I do on that array( average, sum...) will
> threat the NaN as infinite values rather then ignoring them as I'd
> like it'd do.
> Am I missing something? Is this a bug or a feature? :-)

You may be interested in masked arrays.

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