I would like to overlay 2 density plots on the same device with R How can I do that I searched the web but I didn t find any obvious solution My idea would be to read data from a text file columns and then use plot density MyData Column1 plot density MyData Column2 add T Or something in this spirit

How to overlay density plots in R?

use lines for the second one:

plot(density(MyData$Column1))
lines(density(MyData$Column2))

make sure the limits of the first plot are suitable, though.

~ Answered on 2011-08-04 09:44:35