issue_comments: 1546028265

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https://github.com/pydata/xarray/pull/7840#issuecomment-1546028265 https://api.github.com/repos/pydata/xarray/issues/7840 1546028265 IC_kwDOAMm_X85cJoTp 14808389 2023-05-12T16:56:23Z 2023-05-12T16:56:23Z MEMBER

let's have a look at what defines the object: python data = xr.DataArray(np.random.randn(2, 3), dims=("x", "y"), coords={"x": [10, 20]}) That means we have: - random data - two dimensions: x with a length of 2 and y with a length of 3 - one coordinate: x with values [10, 20]

The line python data.x.attrs["units"] = "x units" can be split into two parts: python x = data.x and python x.attrs["units"] = "x units" where x is the coordinate.

If we did the same thing with y we would not get the dimension, but a dummy coordinate that has the values np.arange(data.sizes["y"]). This is admittedly a bit confusing.

 
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