[R] Howto Superimpose Multiple Density Curves Into One Plot

Gundala Viswanath gundalav at gmail.com
Wed Sep 2 12:10:07 CEST 2009

I have a data that looks like this:

And I intend to create multiple density curve into one plot, where each curve
correspond to the unique ID.

I tried to use "sm" package, with this code, but without success.

dat <- read.table("mydat.txt");
plotfn <- ("~/Desktop/flowgram_superimposed.pdf");

sm.density.compare(dat$V1,dat$V2, xlab = "Flow Signal")
colfill <- c(2:10);
legend(locator(1), levels(dat$V2), fill=colfill)


Please advice what's the right way to do it or if  there is
alternative way to do it?
I am trying to get this kind of figure:

- G.V.

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