在 pandas 数据框中选择唯一的观测值 [英] Selecting unique observations in a pandas data frame

问题描述

我有一个pandas数据帧，其列为uniqueid.我想根据此列从数据框中删除所有重复项，以便所有其余观察结果都是唯一的.

I have a pandas data frame with a column uniqueid. I would like to remove all duplicates from the data frame based on this column, such that all remaining observations are unique.

推荐答案

对于任何数据框(

There is also the drop_duplicates() method for any data frame (docs here). You can pass specific columns to drop from as an argument.

df.drop_duplicates(subset='uniqueid', inplace=True)

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