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pandas.Series.duplicated

Series.duplicated(*args, **kwargs)[source]

Return boolean Series denoting duplicate values

Parameters:

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.

take_last : deprecated

Returns:

duplicated : Series

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