issue_comments: 557829302

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html_url issue_url id node_id user created_at updated_at author_association body reactions performed_via_github_app issue
https://github.com/pydata/xarray/pull/3550#issuecomment-557829302 https://api.github.com/repos/pydata/xarray/issues/3550 557829302 MDEyOklzc3VlQ29tbWVudDU1NzgyOTMwMg== 45787861 2019-11-23T20:13:45Z 2019-11-23T20:13:45Z NONE

Either way, it would be good to have a clear list of da_a and da_b and respective expected results. I am a bit confused about what we actually would expect for xarray.DataArray([[1, 2], [np.nan, np.nan]], dims=['x', 'y']).

Maybe, as a first step some type checking would be enough, to identify such special cases as the one above and give a ValueError or NotImplementedError?

 
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