希望能对大家有所帮助

_matplot e(LR21), columns(1 2) yline(7.35, lpattern(dash)) connect(direct) msize(small) mlabp(0) mlabs(zero) ytitle("LR Statistics") xtitle("First Threshold") recast(line) name(LR21) nodraw

_matplot e(LR22), columns(1 2) yline(7.35, lpattern(dash)) connect(direct) msize(small) mlabp(0) mlabs(zero) ytitle("LR Statistics") xtitle("Second Threshold") recast(line) name(LR22) nodraw
graph combine LR21 LR22, cols(1)