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/issues/2923#issuecomment-487291300,https://api.github.com/repos/pydata/xarray/issues/2923,487291300,MDEyOklzc3VlQ29tbWVudDQ4NzI5MTMwMA==,9948595,2019-04-27T14:38:12Z,2019-04-27T14:38:12Z,CONTRIBUTOR,"Seems that the problem begins when `xarray.core.nanops._nan_minmax_object` converts the max index value (2,99) tuple (which is correct) to `np.array((0,99), dtype='O')` which is not because np.array converts this from dims=() to dims=(2,). Which is now incorrect. Interesting... how do you tell numpy to create a 0 dimension array with a tuple? ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,437940426