新手小白，在跑代码时遇到s_income2 not found报错，用的是split命令，求助各位大佬，谢谢！
下面是我的代码
split s_income,parse(,)
gen d_income1=0
replace d_income1=1 if ///
s_income1=="A"|s_income2=="A"|s_income3=="A"