[Solved] Add regression line legend to geom_abline
With slight modification your code works just fine: ggplot() + geom_point(mapping = aes(x = X, y = y)) + geom_abline(aes(colour = “line_1”, intercept = -0.9930872, slope = 0.4866284)) + geom_abline(aes(colour = “line_2”, intercept = -1, slope = 0.5)) + scale_colour_manual(name = “lines”, values = c(“red”, “blue”)) + theme(legend.position = “bottom”) Added legend position in case … Read more