推 wieldthewave: proc sort data=d1 05/02 15:23
→ wieldthewave: by com 05/02 15:23
→ wieldthewave: run 05/02 15:23
→ wieldthewave: data d2 05/02 15:23
→ wieldthewave: set d1 05/02 15:23
→ wieldthewave: by com 05/02 15:23
→ wieldthewave: di = do*ipo 05/02 15:24
→ wieldthewave: retain man 05/02 15:24
→ wieldthewave: if first.com then man=di 05/02 15:24
→ wieldthewave: else man=man+di 05/02 15:24
→ wieldthewave: where year >= 2015 & year<= 2018 05/02 15:24
→ wieldthewave: run 05/02 15:24
→ wieldthewave: 這樣應該ok 試試看吧 05/02 15:24