Thekeep='first'parameter in.duplicated()retains the first occurrence of each duplicate column, dropping subsequent duplicates. Setkeep='last'in.duplicated()to keep the last occurrence of each duplicate column while dropping earlier ones. Use.duplicated(subset=columns)to check for duplicates within a ...
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pyx in pandas._libs.index.IndexEngine._get_loc_duplicates() pandas\_libs\index.pyx in pandas._libs.index.IndexEngine._maybe_get_bool_indexer() KeyError: 'Aa' Python Copy4. 将索引按升序排序,并尝试相同的命令以利用字典排序进行切片。