做调节效应结果是显著的，作出的图却是平行的？不知道怎么回事（命令如下）




foreach v of var zyzd n1{
su `v' if e(sample)
local low_`v'=r(mean)-r(sd)
display `low_`v''
local high_`v'=r(mean)+r(sd)
display `hign_`v''
}


margins, at(zyzd=(`low_zyzd' `high_zyzd') ///
n1=(`low_n1' `high_n1'))
marginsplot, xlabel(`low_zyzd' `low IV' `high_zyzd' `high IV')ytitle("Dependent variable")ylabel(, angle(horizontal) nogrid)legend(position(3) col(1) stack)title("") noci