Home Plot two graphs in same plot in R
 I would like to plot y1 and y2 in the same plot. x <- seq(-2, 2, 0.05) y1 <- pnorm(x) y2 <- pnorm(x, 1, 1) plot(x, y1, type = "l", col = "red") plot(x, y2, type = "l", col = "green")  But when I do it like this, they are not plotted in the same plot together. In Matlab one can do hold on, but does anyone know how to do this in R?