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  • Saving to netCDF with 0D dimension doesn't work · 4 ✖

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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
881941374 https://github.com/pydata/xarray/issues/1352#issuecomment-881941374 https://api.github.com/repos/pydata/xarray/issues/1352 IC_kwDOAMm_X840kVt- keewis 14808389 2021-07-17T18:38:15Z 2021-07-17T18:38:29Z MEMBER

closing as I believe this to be fixed by #1648

 
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   Saving to netCDF with 0D dimension doesn't work 219321876
813098350 https://github.com/pydata/xarray/issues/1352#issuecomment-813098350 https://api.github.com/repos/pydata/xarray/issues/1352 MDEyOklzc3VlQ29tbWVudDgxMzA5ODM1MA== keewis 14808389 2021-04-04T20:59:43Z 2021-04-04T20:59:43Z MEMBER

bisecting tells me that this seems to have been fixed by 8632cd7b3f468865db4dc9e5c09075f941dc70f2 (#1648): ```python import xarray as xr import numpy as np

da = xr.DataArray( np.linspace(0, 1, 2 * 3 * 4).reshape(2, 3, 4), coords={"x": ["a", "b"], "y": ["x", "y", "z"], "z": np.arange(4)}, dims=("x", "y", "z"), name="abc", ) da.loc["a", "x"].to_dataset().to_netcdf("test.nc") xr.open_dataset("test.nc").load() # to verify that the netcdf file is valid ``` only fails before that commit.

 
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   Saving to netCDF with 0D dimension doesn't work 219321876
293016305 https://github.com/pydata/xarray/issues/1352#issuecomment-293016305 https://api.github.com/repos/pydata/xarray/issues/1352 MDEyOklzc3VlQ29tbWVudDI5MzAxNjMwNQ== shoyer 1217238 2017-04-10T17:13:13Z 2017-04-10T17:13:13Z MEMBER

It looks like we have some sort of special logic that calls len() when it shouldn't, thereby precluding scaling scalars string variables in netCDF files.

 
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   Saving to netCDF with 0D dimension doesn't work 219321876
292843480 https://github.com/pydata/xarray/issues/1352#issuecomment-292843480 https://api.github.com/repos/pydata/xarray/issues/1352 MDEyOklzc3VlQ29tbWVudDI5Mjg0MzQ4MA== shoyer 1217238 2017-04-10T03:49:16Z 2017-04-10T03:49:16Z MEMBER

Sorry I missed this earlier.

Do you know how you created this Dataset? Xarray should not let you make a dataset with a 0D dimension variable: that is a violation of its data model.

 
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   Saving to netCDF with 0D dimension doesn't work 219321876

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