Dear all, I have been working in a plot based on figure 5.6 of the Lattice book
(http://lmdvr.r-forge.r-project.org/figures/figures.html).
I
have already modified it to include the size of the circles as another
variable, but I would like to modify the legend to show it (like they do
it in
Júlio,
Your code is not reproducible, you doesn't provide any data. So I did a
minimal code that illustrates a possible procedure is the following
n - 30
da - data.frame(x=runif(n), y=runif(n), z=runif(n))
da$z - cut(da$z, seq(0,1,0.25))
require(lattice)
xyplot(y~x, da, cex=as.numeric(da$z),
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