[Numpy-discussion] New functions.

Christopher Barker Chris.Barker@noaa....
Wed Jun 1 12:30:20 CDT 2011


On 5/31/11 6:08 PM, Charles R Harris wrote:
> 2) Ufunc fadd (nanadd?) Treats nan as zero in addition.

so:

In [53]: a
Out[53]: array([  1.,   2.,  nan])

In [54]: b
Out[54]: array([0, 1, 2])

In [55]: a + b
Out[55]: array([  1.,   3.,  nan])

and nanadd(a,b) would yield:

array([  1.,   3.,  2.)

I don't see how that is particularly useful, at least not any more 
useful that nanprod, nandiv, etc, etc...

What am I missing?

-Chris



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