我在python数据帧中应用正则表达式函数列时遇到问题.这是我的数据帧的负责人:
Name Season School G MP FGA 3P 3PA 3P%
74 Joe Dumars 1982-83 McNeese State 29 NaN 487 5 8 0.625
84 Sam Vincent 1982-83 Michigan State 30 1066 401 5 11 0.455
176 Gerald Wilkins 1982-83 Chattanooga 30 820 350 0 2 0.000
177 Gerald Wilkins 1983-84 Chattanooga 23 737 297 3 10 0.300
243 Delaney Rudd 1982-83 Wake Forest 32 1004 324 13 29 0.448
我认为我已经很好地掌握了将函数应用于Dataframes,所以也许我的正则表达式技能缺乏.
这是我放在一起的东西:
import re
def split_it(year):
return re.findall('(\d\d\d\d)', year)
df['Season2'] = df['Season'].apply(split_it(x)) …