DataFrame.drop_duplicates和DataFrame.drop不删除行

DataFrame.drop_duplicates和DataFrame.drop不删除行

如注释中所述，

drop

并

drop_duplicates

创建一个新的Dataframe，除非提供了inplace参数。所有这些选项将起作用：

df = df.drop(dropRows)df = df.drop_duplicates('b') #this doesnt work eitherdf.drop(dropRows, inplace = True)df.drop_duplicates('b', inplace = True)