各位大侠，以下是我原来的命令，要做二元logit回归，并做一些变量的交互作用检验。现在需要把[size=14.6667px]Employment、[size=14.6667px]dwxz、[size=14.6667px]N5A、[size=14.6667px]C2这四个定性变量设置成虚拟变量，再重新做回归和交互作用检验，不知该如何修改原来的命令？请各位不吝赐教！谢谢！

winsor2 C6AA C4BD C4BE

gen lnC4BD=ln(C4BD_w)

gen lnC6AA=ln(C6AA_w)

logit HD dj gender Marital edu A102M lnC6AA EmploymentlnC4BD dwxz N5A C2 i.YEAR , nolog vce (cluster N5B)

margins, dydx(*)

logit HD gender Marital edu A102M lnC6AA EmploymentlnC4BD dwxz N5A C2 i.YEAR if dj==1, nolog vce (cluster N5B)

margins, dydx(*)

logit HD gender Marital edu A102M lnC6AA EmploymentlnC4BD dwxz N5A C2 i.YEAR if dj==0, nolog vce (cluster N5B)

margins, dydx(*)

logit HD gender Marital edu A102M lnC6AA EmploymentlnC4BD dwxz N5A C2 i.YEAR , nolog vce (cluster N5B)

margins, dydx(*)

gen dMarital=dj*Marital

gen dlnC6AA=dj*lnC6AA

gen dEmployment=dj*Employment

gen dN5A=dj*N5A

gen dC2=dj*C2

logit HD dj gender Marital edu A102M lnC6AA EmploymentlnC4BD dwxz N5A C2 dMarital dlnC6AA dEmployment dN5A dC2 i.YEAR , nolog vce(cluster N5B)

margins, dydx(*)