Changing the Picture with ggplot2

I wanna use R to complete the quantile regression and then draw the picture by Plot function.

BUT I wanna one plot just like the picture1.

I have no idea how to complete the picture in plot function or gglot2

Thanks for your help!


fit1 = rq(TQ ~ PACE + ORTG + DRTG, tau = c(0.10,0.25,0.50,0.75,0.90), data = ZSL)

plot (fit1)

Hi, Can you provide a reproducible example? We don't have access to ZSL

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