How to drop coordinates without dimensions?

[ianliu]

I have a DataArray with many single-valued coordinates as a result of multiple .sel's. Now I want to eliminate all coordinates that doesn't have a corresponding dimension. How can I do this? An example:

import xarray as xr

ds = xr.DataArray([1, 2, 3], dims=("x",), coords={"a": 1, "x": [10, 20, 30]})
ds.drop(...) # How to drop all coordinates that doesn't have a dimension here?

[keewis]

you're looking for drop_vars:

In [1]: import xarray as xr
   ...: 
   ...: arr = xr.DataArray([1, 2, 3], dims=("x",), coords={"a": 1, "x": [10, 20, 30], "b": 2})
   ...: display(arr)
   ...: arr.drop_vars(["a", "b"])
<xarray.DataArray (x: 3)>
array([1, 2, 3])
Coordinates:
    a        int64 1
  * x        (x) int64 10 20 30
    b        int64 2
Out[1]: 
<xarray.DataArray (x: 3)>
array([1, 2, 3])
Coordinates:
  * x        (x) int64 10 20 30

[dcherian]

Use .sel(..., drop=True) to drop the scalar coordinate