A
from sklearn.preprocessing import LabelEncoder
le = LabelEncoder()
df1[‘Make’]=le.fit_transform(df1[“Make”])
B
df1[‘Make’] = df1[‘Make’].str.replace({‘Toyota’:1, ‘Ford’:2, ‘Volvo’:3, ‘Audi’:4, ‘BMW
‘:5, ‘Nissan’:6})
C
df1[‘Make’] = df1[‘Make’].replace({‘Toyota’:1, ‘Ford’:2, ‘Volvo’:3, ‘Audi’:4, ‘BMW’:5,
‘Nissan’:6})
D
df1[‘Make’] = df1[‘Make’].map({‘Toyota’:1, ‘Ford’:2, ‘Volvo’:3, ‘Audi’:4, ‘BMW’:5, ‘Ni
ssan’:6})
正确答案：A；C；D