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DOC: improve description of the example which dataframe has two rows #36971

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4 changes: 3 additions & 1 deletion pandas/core/frame.py
Original file line number Diff line number Diff line change
Expand Up @@ -8972,7 +8972,9 @@ def mode(self, axis=0, numeric_only=False, dropna=True) -> DataFrame:

By default, missing values are not considered, and the mode of wings
are both 0 and 2. The second row of species and legs contains ``NaN``,
because they have only one mode, but the DataFrame has two rows.
because they have only one mode. Because the resulting DataFrame has two rows,
the second row of ``species`` and ``legs`` contains ``NaN``.


>>> df.mode()
species legs wings
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