[Numpy-discussion] Nansum function behavior

2015-10-23 Thread Charles Rilhac
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

Re: [Numpy-discussion] Nansum function behavior

2015-10-23 Thread Charles Rilhac
I saw this thread and I totally disagree with thouis argument… Of course, you can have NaN if there are only NaNs. Thanks goodness, There is a lot of way to do that. But it’s not convenient, consistent and above all, it is wrong logically to do that. NaN does not mean zeros and operation with

Re: [Numpy-discussion] Nansum function behavior

2015-10-23 Thread Charles Rilhac
gt; np.nansum([np.nan, 1]) # one > > If you want to propagate masks and such, use masked arrays. > Ben Root > > > On Fri, Oct 23, 2015 at 12:45 PM, Charles Rilhac <webmastert...@gmail.com > <mailto:webmastert...@gmail.com>> wrote: > Hello, > > I noticed t