interpolation of xarray do not preserve attributes
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topic-interpolation
- Dominant language
- Python
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Description
What is your issue?
Hi all,
Interpolation over an xarray variable do not preserve its attributes:
Here is a minimal example
x=np.arange(100)
x=xr.DataArray(x, dims='x', coords={'x':x})
t=np.arange(40,60,0.5)
t=xr.DataArray(t, dims='t', coords={'t':t}, attrs={'units':'s'})
result = x.interp(x=t)
t coordinate in result do not have the t unit anymore
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First steps
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- Open a pull request that references the issue number.
Research direction
Start with the minimal Python example in the issue and inspect the DataArray.interp path to see where the input coordinate attributes are lost. The fix is complete when the interpolated t coordinate retains its units attribute, with regression coverage for this example.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- numpy, python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100