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DOC: Add a Dataset.reindex_like example #11792

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DOC: Add a Dataset.reindex_like example #11792

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32 changes: 32 additions & 0 deletions xarray/core/dataset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3566,6 +3566,38 @@ def reindex_like(
DataArray.reindex_like
align

Examples
--------
Reindex time-series observations to the time index of another dataset.
Values for new index labels are filled with ``NaN`` by default:

>>> observations = xr.Dataset(
... {"temperature": ("time", [18.0, 21.0])},
... coords={"time": [0, 2]},
... )
>>> observations
<xarray.Dataset> Size: 32B
Dimensions: (time: 2)
Coordinates:
* time (time) int64 16B 0 2
Data variables:
temperature (time) float64 16B 18.0 21.0
>>> target = xr.Dataset(coords={"time": [0, 1, 2]})
>>> target
<xarray.Dataset> Size: 24B
Dimensions: (time: 3)
Coordinates:
* time (time) int64 24B 0 1 2
Data variables:
*empty*
>>> observations.reindex_like(target)
<xarray.Dataset> Size: 48B
Dimensions: (time: 3)
Coordinates:
* time (time) int64 24B 0 1 2
Data variables:
temperature (time) float64 24B 18.0 nan 21.0

"""
return alignment.reindex_like(
self,
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