初学sas,有个问题请教各位前辈 如何删除中weekday=3 4 5 的行?
我的程序是
if weekday = “3 4 5”
then delete;
数据如下:
PERMNO date RET vwretd ticker year weekday period
11850 01/03/1955 0.027119 0.010733 E&M 1955 2 1
11850 01/04/1955 0.0022 -0.004141 E&M 1955 3 1
11850 01/05/1955 -0.020856 -0.021294 E&M 1955 4 1
11850 01/06/1955 -0.024664 -0.013627 E&M 1955 5 1
11850 01/07/1955 0.006897 0.011262 E&M 1955 6 1
11850 01/10/1955 0.022831 0.014542 E&M 1955 2 1