issue_comments: 617352770

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https://github.com/pydata/xarray/issues/3774#issuecomment-617352770 https://api.github.com/repos/pydata/xarray/issues/3774 617352770 MDEyOklzc3VlQ29tbWVudDYxNzM1Mjc3MA== 35968931 2020-04-21T18:59:53Z 2020-04-21T18:59:53Z MEMBER

I don't think it's a great idea to automatically turn scalar coords into 1d arrays.

Fair enough. Those are good reasons.

The other choice for situations like this would be to encourage switching to combine_nested for use cases like this

The fact that you can solve this use case with combine_nested does make this feature a lot less important.

We could even put a reference to combine_nested in this error raised by combine_by_coords.

The error you get is ValueError: Could not find any dimension coordinates to use to order the datasets for concatenation so we could try to automatically detect the coordinates the user might have wanted to combine along, or we can just add something like ValueError: Could not find any dimension coordinates to use to order the datasets for concatenation. To specify dimensions or coordinates to concatenate along, use the `concat_dim` argument to `xarray.combine_nested`.

 
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