Simple Steps in Stata Video 15 - Quantile Regression

25% quantile
qreg roa_w sr size age gdpg, quantile (.25)
50% quantile
qreg roa_w sr size age gdpg, quantile (.50)
75% quantile
qreg roa_w sr size age gdpg, quantile (.75)
90% quantile
qreg roa_w sr size age gdpg, quantile (.90)