Hi everyone, I have two different results which is determined by (x,y) > x1 <- c(1,5,8) > y1 <- c(8,9,10) > x2 <- c(1,7,9) > y2 <- c(5,7,9) Let call one=(x1,y1) and Two=(x2,y2) how can I draw them in R in a scatter plot showing (x,y) with two different legends (One, Two) Regards, Amir