pandas.DataFrame.duplicated

时间：2019-11-23 00:00:36 阅读：101 评论：0 收藏：0 [点我收藏+]

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

原文地址：https://www.cnblogs.com/zjuhaohaoxuexi/p/11914735.html

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