[R] Multiple scatterplots

[Kostadin Cholakov]

Hi,

I have to plot three Ziph distributions for three languages where the
x value represents the rank of a given word and the y value represents
the relative frequency of this word in the corpus. Is there some way
so that I can plot all three distributions on a single scatterplot,
preferably with different colours :) I tried to find something in the
R manual but there are no such examples :( Thank you!