issue_comments: 482162700

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https://github.com/pydata/xarray/issues/2889#issuecomment-482162700 https://api.github.com/repos/pydata/xarray/issues/2889 482162700 MDEyOklzc3VlQ29tbWVudDQ4MjE2MjcwMA== 6815844 2019-04-11T15:28:58Z 2022-01-05T21:59:48Z MEMBER

Thanks @mathause I also think the current behavior is not perfect but the best.

I would expect both to return np.nan

I expect that np.nansum(ds) is equivalent to np.sum(not nan values) and thus should be 0, while np.mean should be NaN as @dcherian pointed out.

To me, the future average function would also return np.nan for all nan slices.

 
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