我有以下代码将两列连接成一个新列:
import pandas as pd
d = {
'name': ['Tomek', 'Jacek', 'Placek'],
'surname': ['A', 'B', 'C'],
}
df = pd.DataFrame(d)
df['fullname'] = df['name'] + ' ' + df['surname']
print(df)
# output:
# name surname fullname
# 0 Tomek A Tomek A
# 1 Jacek B Jacek B
# 2 Placek C Placek C
但是,我需要改用字符串格式:
import pandas as pd
d = {
'name': ['Tomek', 'Jacek', 'Placek'],
'surname': ['A', 'B', 'C'],
}
df = pd.DataFrame(d)
df['fullname'] = f"{df['name']} {df['surname']}"
print(df)
但随后的输出是:
# name surname fullname
# 0 Tomek A 0 Tomek\n1 Jacek\n2 Placek\nName: n...
# 1 Jacek B 0 Tomek\n1 Jacek\n2 Placek\nName: n...
# 2 Placek C 0 Tomek\n1 Jacek\n2 Placek\nName: n...
我怎样才能使用字符串格式并仍然像第一个那样输出?
最佳答案
I need to use string formatting instead
使用zip()
然后列表理解
df['fill_name']=[f"{a} {b}" for a,b in zip(df.name,df.surname)]
print(df)
name surname fill_name
0 Tomek A Tomek A
1 Jacek B Jacek B
2 Placek C Placek C
关于python - 通过使用字符串格式连接两个其他列来创建一个新列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56790882/