pandas AttributeError：无法访问“DataFrameGroupBy”对象的可调用属性“groupby”
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AttributeError: Cannot access callable attribute 'groupby' of 'DataFrameGroupBy' objects
提问by harry04
I have a dataframe that has 3 columns -
我有一个包含 3 列的数据框 -
I want to group the columns on the basis of Chopstick Length by doing something like this -
我想通过做这样的事情根据筷子长度对列进行分组 -
meansByCL = df_chopstick.groupby('Chopstick.Length')['Food.Pinching.Efficiency'].mean().reset_index()
but this throws an error -
但这会引发错误-
AttributeError: Cannot access callable attribute 'groupby' of 'DataFrameGroupBy' objects, try using the 'apply' method
I'm not sure what this error means. Can anyone tell me what I'm doing wrong or how I can write this code differently?
我不确定这个错误是什么意思。谁能告诉我我做错了什么或者我如何以不同的方式编写这段代码？
回答by harry04
This happens when you are trying to groupby()a dataframe which has been already grouped before!
当您尝试groupby()使用之前已经分组的数据框时会发生这种情况！
