Question

from sklearn.preprocessing import OneHotEncoder
X = data.iloc[:,1:4]
enc = OneHotEncoder(categories='auto').fit(X)
result = enc.transform(X).toarray()
result
enc.get_feature_names()
newdata = pd.concat([data,pd.DataFrame(result)],axis=1)
newdata.columns

显示结果为Index（['总里程'，'业务类型'，'需求类型1'，'需求类型2'，'线路价格（不含税）'，……，0，1，2， 3，4，5]， dtype ='object'），以上都正常

newdata.drop(['业务类型','需求类型1','需求类型2'],axis=1,inplace=True)


KeyError                                  Traceback (most recent call last)
<ipython-input-70-dda56039a1d9> in <module>
----> 1 newdata.drop(['业务类型','需求类型1','需求类型2'],axis=1,inplace=True)

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\frame.py in drop(self, labels, axis, index, columns, level, inplace, errors)
   4100             level=level,
   4101             inplace=inplace,
-> 4102             errors=errors,
   4103         )
   4104 

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\generic.py in drop(self, labels, axis, index, columns, level, inplace, errors)
   3912         for axis, labels in axes.items():
   3913             if labels is not None:
-> 3914                 obj = obj._drop_axis(labels, axis, level=level, errors=errors)
   3915 
   3916         if inplace:

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\generic.py in _drop_axis(self, labels, axis, level, errors)
   3944                 new_axis = axis.drop(labels, level=level, errors=errors)
   3945             else:
-> 3946                 new_axis = axis.drop(labels, errors=errors)
   3947             result = self.reindex(**{axis_name: new_axis})
   3948 

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\indexes\base.py in drop(self, labels, errors)
   5338         if mask.any():
   5339             if errors != "ignore":
-> 5340                 raise KeyError("{} not found in axis".format(labels[mask]))
   5341             indexer = indexer[~mask]
   5342         return self.delete(indexer)

KeyError: "['业务类型' '需求类型1' '需求类型2'] not found in axis"

请问哪里出错了？

KeyError：［］在轴中找不到

0 个答案: