我收到了错误：
TypeError：'method'对象不可订阅
当我尝试加入两个Pandas数据帧时......
看不出他们有什么问题！
有关信息，请执行Kaggle泰坦尼克号问题：
titanic_df.head()
Out[102]:
Survived Pclass SibSp Parch Fare has_cabin C Q title Person
0 0 3 1 0 7.2500 1 0.0 0.0 Mr male
1 1 1 1 0 71.2833 0 1.0 0.0 Mrs female
2 1 3 0 0 7.9250 1 0.0 0.0 Miss female
3 1 1 1 0 53.1000 0 0.0 0.0 Mrs female
4 0 3 0 0 8.0500 1 0.0 0.0 Mr male
In [103]:
sns.barplot(x=titanic_df["Survived"],y=titanic_df["title"])
Out[103]:
<matplotlib.axes._subplots.AxesSubplot at 0x11b5edb00>
In [125]:
title_dummies=pd.get_dummies(titanic_df["title"])
title_dummies=title_dummies.drop([" Don"," Rev"," Dr"," Col"," Capt"," Jonkheer"," Major"," Mr"],axis=1)
title_dummies.head()
Out[125]:
Lady Master Miss Mlle Mme Mrs Ms Sir the Countess
0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0
2 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0
3 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0
4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
In [126]:
titanic_df=title_dummies.join[titanic_df]
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-126-a0e0fe306754> in <module>()
----> 1 titanic_df=title_dummies.join[titanic_df]
TypeError: 'method' object is not subscriptable
答案 0 :(得分：2)
您需要在DataFrame.join函数中将[]更改为()：
titanic_df=title_dummies.join(titanic_df)
print (titanic_df)
Lady Master Miss Mlle Mme Mrs Ms Sir the Countess Survived \
0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
1 1 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 1
2 2 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 1
3 3 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 1
4 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
Pclass SibSp Parch Fare has_cabin C Q title Person
0 3 1 0 7.2500 1 0.0 0.0 Mr male
1 1 1 0 71.2833 0 1.0 0.0 Mrs female
2 3 0 0 7.9250 1 0.0 0.0 Miss female
3 1 1 0 53.1000 0 0.0 0.0 Mrs female
4 3 0 0 8.0500 1 0.0 0.0 Mr male