Hello,
I noticed the change regarding nan function and especially nansum function. I
think this choice is a big mistake. I know that Matlab and R have made this
choice but it is illogical and counterintuitive.
First argument is about logic. An arithmetic operation between Nothing and
Nothing cannot make a figure or an object. Nothing + Object can be an object or
something else, but from nothing, it cannot ensue something else than nothing.
I hope you see what I mean.
Secondly, it's counterintuitive and not convenient. Because, if you want to
fill the result of nanfunction you can do that easily :
a = np.array([[np.nan, np.nan], [1,np.nan]])
a = np.nansum(a, axis=1)
print(a)
array([np.nan, 1.])
a[np.isnan(a)] = 0
Whereas, if the result is already filled with zero on NaN-full rows, you cannot
replace the result of NaN-full rows by NaN easily. In the case above, you
cannot because you lost information about NaN-full rows.
I know it is tough to come back to a previous stage but I really think that it
is wrong to absolutely fill with zeros the result of arithmetic operation
containing NaN.
Thank for your work guys ;-)
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