Are you talking about overlaying all the density estimates in the same plot?
If you have the density estimates in a matrix, just use something like:
matplot(X, density.X, type="l")
where X is the vector of points where density is estimated (e.g., the x
component of a density object) and density.X is the matrix containing the
density estimates. Check out the options to matplot in its help page.
HTH,
Andy
-----Original Message-----
From: Hinnerk Boriss [mailto:boriss at izbi.uni-leipzig.de]
Sent: Friday, November 15, 2002 10:57 AM
To: ripley at stats.ox.ac.uk
Cc: R-help at stat.math.ethz.ch
Subject: RE: [R] evaluating density objects
Thanks for all the suggestions!
> dens <- density(...)
> write.table(data.frame(x=dens$x, y=dens$y), "somefile")
>
> I have no idea why anyone would want to plot in gnuplot
> rather than in R,
> and hence don't know what formats gnuplot accepts.
The point is that I want to plot many densities in one graph. I can do
that with R using par(new=T), but I cannot print those graphs.
Thus, I wonder if I could also apply (lapply) density(...) to a vector
of x-values, to get a my different density functions evaluated all at
the same x. Then, I should be able to write a file that looks like:
X dens1(X) dens2(X) ...
Can anyone help?
Cheers,
Hinnerk
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