issue_comments: 271715645

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https://github.com/pydata/xarray/issues/1197#issuecomment-271715645 https://api.github.com/repos/pydata/xarray/issues/1197 271715645 MDEyOklzc3VlQ29tbWVudDI3MTcxNTY0NQ== 1217238 2017-01-10T22:16:33Z 2017-01-10T22:16:33Z MEMBER

You shouldn't be able to make a DataArray like this -- you have three dimensions on coordinates, but only one dimension on the array itself.

With xarray 0.8.2, you get an error message with your example: import xarray as xr arr = xr.DataArray(np.zeros([1, 2, 3]), {'x': [1], 'y': [1, 2], 'z': [1, 2, 3]}) ValueError: conflicting sizes for dimension 'z': length 1 on the data but length 3 on coordinate 'z' However, this error message is not quite accurate. You need to explicitly provide dims to get a sensible error: arr = xr.DataArray(np.zeros([1, 2, 3]), {'x': [1], 'y': [1, 2], 'z': [1, 2, 3]}, dims=['x']) ValueError: coordinate z has dimensions ('z',), but these are not a subset of the DataArray dimensions ['x']

I still need to test this on the dev version, but for now I will make this as an error reporting bug.

 
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