Support label-based slicing in RangeIndex
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bug
topic-indexing
- Dominant language
- Python
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Description
What happened?
import xarray as xr
idx1 = xr.indexes.RangeIndex.arange(0.0, 1000.0, 1e-9, dim="x")
ds1 = xr.Dataset(coords=xr.Coordinates.from_xindex(idx1))
ds1.sel(x=slice(1, 2))
raises
ValueError: RangeIndex only supports selection with method='nearest'
I think this should work
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Research direction
Start by reproducing the failure with xarray.indexes.RangeIndex.arange and ds1.sel(x=slice(1, 2)), then trace the RangeIndex selection path. Check how selection handles method='nearest' and determine where label-based slices are rejected. Done means the shown slice selection succeeds without the current ValueError, with coverage for this example.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100