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我已經使用pandas包編寫了以下python代碼。創建熊貓數據框時出現TypeError
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
from pandas import Series
csv = pd.read_csv('train.csv')
df_csv = pd.DataFrame(csv)
PassengerId = np.array(df_csv['PassengerId'])
Age = np.array(df_csv['Age'])
Pclass = np.array(df_csv['Pclass'])
Sex = np.array(df_csv['Sex'])
i = 0
while i < 891:
if Sex[i] == 'male':
Sex[i] = 0
i = i + 1
else:
Sex[i] = 1
i = i + 1
Sex = np.array(Sex)
new_df = pd.DataFrame[
'PassengerId': Series(PassengerId),
'Age': Series(Age),
'Pclass': Series(Pclass),
'Sex': Series(Sex)
]
print(new_df)
我試圖通過讀取csv文件,存儲幾列作爲numpy的陣列然後更換一個陣列的值來創建一個數據幀。當我再次合併這些數組作爲數據幀,我得到以下錯誤
D:\Projects\Titanic>python python.py
Traceback (most recent call last):
File "python.py", line 27, in <module>
'Sex': Sex
TypeError: 'type' object is not subscriptable
請幫我。在此先感謝
更換
這是無效的:'new_df = pd.DataFrame [ 'PassengerId':系列(PassengerId), '時代':系列(Age), 'Pclass':Series(Pclass), 'Sex':Series(Sex) ]'it should be round parenthese'()'另外你應該傳遞一個字典'new_df = pd.DataFrame({ 'PassengerId' :系列(PassengerId), '年齡':系列(年齡), 'Pclass':系列(Pclass), '性別':系列(性別) })' – EdChum
謝謝!它工作完美! –