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/2889#issuecomment-482158883,https://api.github.com/repos/pydata/xarray/issues/2889,482158883,MDEyOklzc3VlQ29tbWVudDQ4MjE1ODg4Mw==,2448579,2019-04-11T15:19:42Z,2019-04-11T15:19:42Z,MEMBER,"This is correct though isn't it? Mean = nansum(not nan values)/count(not nan values) = 0/0 ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,432074821