[R] Overlay Boxplot with scatter plot

[Lanre Okusanya]

I am trying to make a box plot and overlay it with a scatter plot from
another data.frame. I was able to successfully create the boxplot, but
when i tried using points(x~y...) the dots did not show up.

example code

aa<-(300,300,300,300,600,600,600,600,900,900,900,900)
bb<-(13,12,14,11,56,44,34,75,22.,34,22,98,59,55,56)
cc<-(13,12,14,11,56,44,34,75,22.,34,22,98,59,55,56)
nn<-data.frame(aa,bb)
mm<-data.frame(aa,cc)
boxplot(bb~aa, data=nn)
lines(cc~aa, data=cc)

Any help with example code is appreciated.

Thank you.

Lanre