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  • mathause · 1 ✖

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  • Coordinate dtype changing to object after xr.concat · 1 ✖

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id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions performed_via_github_app issue
717436557 https://github.com/pydata/xarray/issues/4543#issuecomment-717436557 https://api.github.com/repos/pydata/xarray/issues/4543 MDEyOklzc3VlQ29tbWVudDcxNzQzNjU1Nw== mathause 10194086 2020-10-27T18:22:50Z 2020-10-27T18:22:50Z MEMBER

I think the problem is in align and that pd.Index(["a"]) has dtype=object:

python import pandas as pd pd.Index(["a", "b"])

concat calls align here

https://github.com/pydata/xarray/blob/adc55ac4d2883e0c6647f3983c3322ca2c690514/xarray/core/concat.py#L383

and align basically does the following:

python index = da1.indexes["x2"] | da2.indexes["x2"] da1.reindex({"x2": index})

Thus we replace the coords with an index.

 
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   Coordinate dtype changing to object after xr.concat 730569820

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