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TYP: Update input of core.algorithms.duplicated #42657

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TYP: Update input of core.algorithms.duplicated #42657

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ff66846
update input of core.algorithms.duplicated
lilisako Jul 22, 2021
1c04169
fix order of inputs according to docs
lilisako Jul 22, 2021
984a22a
fix datatype to AnyArrayLike
lilisako Jul 23, 2021
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5 changes: 3 additions & 2 deletions pandas/core/algorithms.py
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Original file line number Diff line number Diff line change
Expand Up @@ -903,14 +903,15 @@ def value_counts_arraylike(values, dropna: bool):


def duplicated(
values: ArrayLike, keep: Literal["first", "last", False] = "first"
values: AnyArrayLike,
keep: Literal["first", "last", False] = "first",
) -> np.ndarray:
"""
Return boolean ndarray denoting duplicate values.

Parameters
----------
values : nd.array, ExtensionArray or Series
values : nd.array, ExtensionArray, Series or Index
Array over which to check for duplicate values.
keep : {'first', 'last', False}, default 'first'
- ``first`` : Mark duplicates as ``True`` except for the first
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