Hallo Lorenzo,
In addition to Berts advice
try
> trellis.par.get("superpose.symbol")
which shows the default for superposed graphics
and set them with the par.settings parameter
> dotplot(VADeaths, type = "o",
+ auto.key = list(lines = TRUE, space = "right"),
+ main = "Death Rates in Virginia - 19
I was surprised this worked at all, as I usually use the formula interface.
Anyway, you need to explicitly specify the point types via the pch
argument. The default uses trellis.par.get("dot.symbol"), which is
just a single value.
-- Bert
Bert Gunter
"The trouble with having an open mind is
Dear All,
I am making my baby steps with the lattice graphic system.
I am going through the great book by Sarkar which provides plenty of
examples.
However, I notice that some of them appear to give a different result
on my system.
For instance, consider the following
library(lattice)
library(la
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