- reg gini pcgdp c.pcgdp#c.pcgdp, robust
- marginscontplot pcgdp, ci saving(Graph1, replace)
- *graph save Graph "E:\Graph1.gph", replace
- reg gini pcgdp c.pcgdp#c.pcgdp state trans, robust
- marginscontplot pcgdp, ci saving(Graph2, replace)
- *graph save Graph "E:\Graph2.gph", replace
- use "Graph1.dta", clear
- ren _margin _margin1
- merge 1:1 pcgdp using "Graph2.dta"
- ren _margin _margin2
- twoway (line _margin1 pcgdp) (line _margin2 pcgdp)