Czerminski, Ryszard wrote:
I am using levelplot() function from pkg:lattice and I want to add some
points
to the plot generated by levelplot()
It's best to include a small example of what you have done so far, and
what you want to further do. Actual R code with a small sample dataset
is great.
similarly as in basic R graphic sequence: plot(...); points(...),
but it does not work.
I was reading documentation for lattice, but so far without much
success.
I would very much appreciate some tips.
Most base graphics functions like point have a grid equivalent. In this
case, use grid.points.
levelplot(runif(100)~runif(100)*runif(100),
panel = function(...) {
panel.levelplot(...)
grid.points(.1, .1, pch = 2)
})
I found the Lattice book and the "R Graphics" book invaluable, both are
worth getting.
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