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1. Query the columntitanic_df['Embarked'][titanic_df['Embarked'] =='S'] ...

簡(jiǎn)單來(lái)說(shuō) LabelEncoder 是對(duì)不連續(xù)的數(shù)字或者文本進(jìn)行編號(hào) from sklearn.preprocessing import Lab...