Manipulating x axis in panel plot when a factor is used
问题 The code I've used is: mcgc <- ggplot(sam, aes(x = person,y = m, colour = X)) + geom_point(size = 0.75) + scale_colour_gradient2(high="red", mid="green", limits=c(0,1), guide = "colourbar") + geom_hline(aes(yintercept = mad, linetype = "mad"), colour = "blue", size=0.75, show_guide = TRUE) + geom_hline(aes(yintercept = mmad, linetype = "mmad"), colour = "black", size=0.75, show_guide = TRUE) + facet_wrap(~ Plan, scales = "free", ncol = 4) + scale_linetype_manual(name = "Plan of Health Care",