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[英]Python match the string of one column to the substring of another column
[英]How to match a string from one column to another string in other column in Python?
我為用戶提供了一個密碼列:
user_name password first_name last_name uses_name
vance.jennings vance vance jennings true
bino.lapsi dflkjdk bino lapsi false
我在這里手動填寫了uses_name,但是通常我需要檢查用戶的名字或姓氏==
密碼。
請告知我該怎么做?
到目前為止,這是我嘗試過的:
users['uses_name'] = (users['password'].isin(users['first_name']) |
users['password'].isin(users['last_name']))
我認為您需要通過|
比較列和鏈條條件 對於OR
:
users['uses_name'] = (users['last_name'] == users['password'])|
(users['first_name'] == users['password'])
users['uses_name'] = users[['first_name', 'last_name']].eq(users['password'], axis=0).any(axis=1)
print (users)
user_name password first_name last_name uses_name
0 vance.jennings vance vance jennings True
1 bino.lapsi dflkjdk bino lapsi False
使用pd.DataFrame.apply()
另一個選項:
users.apply(lambda s: s['password'] == s['first_name'] or s['password'] == s['last_name'], axis=1)
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