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docs: preserve GWPCA plotting coordinate columns - #259

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nicrie merged 1 commit into
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fix/gwpca-plotting-coordinates
Oct 23, 2026
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nicrie merged 1 commit into
mainfrom
fix/gwpca-plotting-coordinates

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@nicrie nicrie commented Oct 23, 2026

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Fix broken documentation by reseting the station MultiIndex before converting both plotting results to DataFrames. Recent xarray versions keep x and y only as index levels, causing the gallery example to fail with KeyError: 'x'.

Reset the station MultiIndex before converting both plotting results to DataFrames. Recent xarray versions keep x and y only as index levels, causing the gallery example to fail with KeyError: 'x'.

Add regression coverage for both conversions and verify compatibility with older and current xarray versions.
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nicrie merged commit 5958363 into main Oct 23, 2026
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