[Numpy-discussion] average of array containing NaN
Giorgio F. Gilestro
Mon Jun 25 14:55:12 CDT 2007
BTW, I found nanmean and nanstd in scipy.stats.stats will be good for
my case too.
On 6/25/07, Charles R Harris <firstname.lastname@example.org> wrote:
> On 6/25/07, Giorgio F. Gilestro <email@example.com> wrote:
> > Masked array seems definitely to be the way to go, thanks a lot.
> > I must say that this entire issue doesn't make much sense to me: my
> > understanding is the a NaN is different from an INF, therefore one
> > would assume that really there is no reason why a not-number should
> > not be ignored by default by all the array manipulating functions.
> Strictly speaking, it should be propagated, i.e., the sum and average should
> be NaNs also. I don't know why that didn't happen.
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