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/659#issuecomment-334212532,https://api.github.com/repos/pydata/xarray/issues/659,334212532,MDEyOklzc3VlQ29tbWVudDMzNDIxMjUzMg==,25231875,2017-10-04T16:27:21Z,2017-10-04T16:27:21Z,NONE,"In case anyone gets here by Googling something like ""xarray groupby slow"" and you loaded data from a netCDF file, be aware that slowness you see in groupby aggregation on a `Dataset` or `DataArray` may actually be due not to this issue but to the lazy loading that's done by default.  This can be fixed by calling `.load()` on the `Dataset` or `DataArray`.  See the Tip about lazy loading at http://xarray.pydata.org/en/stable/io.html#netcdf.  ","{""total_count"": 9, ""+1"": 6, ""-1"": 0, ""laugh"": 0, ""hooray"": 1, ""confused"": 0, ""heart"": 1, ""rocket"": 1, ""eyes"": 0}",,117039129