How to combine two graphs obtain using grqreg?

[Biswa bhusan]

Dear user, First, I did regression for rural using "qreg", then, i obtain quantile graph using grqreg. Second, I did regression for urban, then, i obtain quantile graph using grqreg. Now, I want to combine rural and urban quantile graph in one graph. But, unable to do. Please suggest me how to write code in shortest way. You can use auto data.

[Scott Merryman]

Use the save() option in grqreg, merge the files and then graph using twoway.

[Biswa bhusan]

Thank you Scott. But what variable need to be used as the key variable during merge. Is it 'qtile' or something else?

[Scott Merryman]

Yes

clear
sysuse auto
qreg price mpg if fore == 0
grqreg mpg, save(q1)
qreg price mpg if fore == 1
grqreg mpg, save(q2)
use q1
rename mpg DomesticMPG
label var DomesticMPG "Domestic MPG"
merge 1:1 qtile using q2
rename mpg ForeignMPG
label var ForeignMPG "Foreign MPG"
line D F qt

[Biswa bhusan]

Thank you Scott.