pandas.DataFrame.duplicated¶
- DataFrame.duplicated(*args, **kwargs)¶
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.
take_last : deprecated
cols : kwargs only argument of subset [deprecated]
Returns: duplicated : Series