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/5247#issuecomment-831962034,https://api.github.com/repos/pydata/xarray/issues/5247,831962034,MDEyOklzc3VlQ29tbWVudDgzMTk2MjAzNA==,10194086,2021-05-04T13:56:17Z,2021-05-04T13:56:17Z,MEMBER,Thanks @gcaria!,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,874044225
https://github.com/pydata/xarray/pull/5247#issuecomment-830925003,https://api.github.com/repos/pydata/xarray/issues/5247,830925003,MDEyOklzc3VlQ29tbWVudDgzMDkyNTAwMw==,1217238,2021-05-02T23:23:52Z,2021-05-02T23:23:52Z,MEMBER,"The model we have with `DataArray.to_pandas()` is that it converts into a corresponding pandas object _without changing the number of dimensions_. `to_dataframe()`/`to_series()` will flatten multiple dimensions into a MultiIndex, but that isn't the role of `to_pandas()`.

Thus:

- 0D xarray.DataArray -> 0D NumPy scalar
- 1D xarray.DataArray -> 1D pandas.Series
- 2D xarray.DataArray -> 2D pandas.DataFrame
- 3D or higher xarray.DataArray -> error

If we treat a `Dataset` like a `DataArray` with one extra dimension (corresponding to variables), then it would make sense to have:

- 0D xarray.Dataset -> 1D pandas.Series
- 1D xarray.Dataset -> 2D pandas.DataFrame (same as `to_dataframe()`)
- 2D or higher xarray.Dataset -> error

I guess this is basically what you have here, except for raising an error in the final case (the error message should mention `to_dataframe()`.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,874044225
https://github.com/pydata/xarray/pull/5247#issuecomment-830876382,https://api.github.com/repos/pydata/xarray/issues/5247,830876382,MDEyOklzc3VlQ29tbWVudDgzMDg3NjM4Mg==,5635139,2021-05-02T21:39:43Z,2021-05-02T21:39:43Z,MEMBER,Seems very reasonable to me; others' thoughts?,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,874044225