pandas.DataFrame.duplicated

2024-03-20 21:39:40

DataFrame.duplicated(self, subset=None, keep='first')

Return boolean Series denoting duplicate rows, optionally only considering certain columns.

Parameters:	subset : column label or sequence of labels, optional Only consider certain columns for identifying duplicates, by default use all of the columns keep : {‘first’, ‘last’, False}, default ‘first’ `first` : Mark duplicates as `True` except for the first occurrence. `last` : Mark duplicates as `True` except for the last occurrence. False : Mark all duplicates as `True`.
Returns:	Series

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