我有一个如下所示的数据框，
a b c
AAAA BBB -25488
AAAA BBB -71364
AAAA BBB +40632
AAAA BBB +230015
AAAA BBB +49284
AAAA BBB -9239
AAAA BBB +67887
AAAA BBB -23350
AAAA BBB +432591
上面的数据框最后应该是，
a b c d
AAAA BBB - 25488
AAAA BBB - 71364
AAAA BBB + 40632
AAAA BBB + 230015
AAAA BBB + 49284
AAAA BBB - 9239
AAAA BBB + 67887
AAAA BBB - 23350
AAAA BBB + 432591
任何帮助都会非常感激
答案 0 :(得分：1)
使用str.extract：
print (df)
a b c
0 AAAA BBB -25488
1 AAAA BBB -71364
2 AAAA BBB +40632
3 AAAA BBB +230015
4 AAAA BBB +49284
5 AAAA BBB -9239
6 AAAA BBB +67887
7 AAAA BBB -23350
8 AAAA BBB +432591
df[['c','d']] = df.c.str.extract('([+-])(\d*)', expand=True)
print (df)
a b c d
0 AAAA BBB - 25488
1 AAAA BBB - 71364
2 AAAA BBB + 40632
3 AAAA BBB + 230015
4 AAAA BBB + 49284
5 AAAA BBB - 9239
6 AAAA BBB + 67887
7 AAAA BBB - 23350
8 AAAA BBB + 432591