[Numpy-discussion] MaskedArray and the min, max, sum, prod Methods
Fri Jan 4 09:42:54 CST 2008
On Friday 04 January 2008 10:27:32 Alexander Michael wrote:
> Hmm. I liked the base ndarray behavior as it makes a lot of sense to
> me and provides an easy default that avoids needing to check the
> result between steps.
I must admit I have troubles conceptualizing the product of an empty array, so
the ndarray behavior is a bit puzzling to me.
> Does MaskedArray do this to be compatible
> with the original ma, or is there a theoretically good reason for it
> that I am missing?
Yes for the part. For the second, well, I think there's a difference between a
maskedarray of a given size, where all values are masked, and an empty array.
Any operation on a fully-masked array should result in maskedarray.masked.
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