使用pandas批量处理矢量化字符串的实例讲解

#!/usr/bin/python
import numpy as np
import pandas as pd
from pandas import Series,Data 
seriers_data = Series(['Hello','Python','Data','World'])
print(seriers_data.map(str.lower))

GreydeMac-mini:chapter07 greyzhang$ vim series_map.py
GreydeMac-mini:chapter07 greyzhang$ python series_map.py 
0   hello
1  python
2   data
3   world
dtype: