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DOC: fix mask/where docstring alignment note (#61781) #62029

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DOC: fix mask/where docstring alignment note (#61781) #62029

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DOC: fix mask/where docstring alignment note (#61781)
abhaypsingh Aug 2, 2025
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Merge branch 'main' into docfix/61781-mask-where-alignment
abhaypsingh Aug 3, 2025
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6 changes: 3 additions & 3 deletions pandas/core/generic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9946,9 +9946,9 @@ def where(
The {name} method is an application of the if-then idiom. For each
element in the caller, if ``cond`` is ``{cond}`` the
element is used; otherwise the corresponding element from
``other`` is used. If the axis of ``other`` does not align with axis of
``cond`` {klass}, the values of ``cond`` on misaligned index positions
will be filled with {cond_rev}.
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the other in L9949 i agree should be self. the rest of this i think is OK as it means that cond is reindexed with cond_rev as its fill_value.

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(actually passing fill_value to align might be better than the current implementation that separately calls fillna after align.

``other`` is used. If the axis of ``self`` does not align with axis of
``cond``, misaligned index positions will be filled with the original value
from ``self``.

The signature for :func:`Series.where` or
:func:`DataFrame.where` differs from :func:`numpy.where`.
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