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.
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.