issue_comments: 702339435

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https://github.com/pydata/xarray/issues/4473#issuecomment-702339435 https://api.github.com/repos/pydata/xarray/issues/4473 702339435 MDEyOklzc3VlQ29tbWVudDcwMjMzOTQzNQ== 5635139 2020-10-01T19:07:39Z 2020-10-01T19:07:39Z MEMBER

I'm not entirely sure, but I suspect something like the approach in #4184 might be more directly relevant for speeding up unstack (at least with NumPy arrays).

Great. I need to think through how to do that — the approach of using MultiIndex codes to index the array directly is very elegant — I'll try applying it to stack / unstack as a project.

 
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