Difficult to convert pd.DataFrame to Dataset with multi-index

[staadecker]

What is your issue?

No direct way to create multi-index dataset

Unless I'm missing something, there is no easy way to convert a Pandas dataframe to a dataset with a multi-index. For example, xr.Dataset.from_dataframe automatically converts any Pandas multi-index into separate dimensions.

Workaround is inefficient

One workaround is doing xr.Dataset.from_dataframe(df).stack(...) however this is very inefficient for sparse multi-indices.

[max-sixty]

Does xr.Dataset(df) work?

[staadecker]

@max-sixty yes it does. Thank you! I submitted a pull request to add this to the documentation.