python - pandas向量化运算获取字符串长度

Question

<分区>

Answer 1

使用str.len :

print (df.text.str.len())                   
0    11
1    25
2    13
Name: text, dtype: int64

示例:

import pandas as pd

df = pd.DataFrame(['Donald Dump','Make America Great Again!','Donald Shrimp'],
                   columns=['text'])
print (df)
                        text
0                Donald Dump
1  Make America Great Again!
2              Donald Shrimp

df['text_length'] = (df.text.str.len())                   
print (df)
                        text  text_length
0                Donald Dump           11
1  Make America Great Again!           25
2              Donald Shrimp           13