On Oct 13, 2010, at 11:44 AM, Jeremy Olson wrote:
Dear All,
I have 4 or 5 contour plots that I need to overlay. Currently they
are maps showing hot and cold areas for specific elements.
Providing paste-able examples is the standard way to present such
problems.
I would like to combine these plots into one map, where each color
will correspond to a different element and you would be able to see
the areas that each element occupies on this map.
Hopefully there is not much overlap , so dealing with the collisions/
overlap is not a major issue?
Is there a way to do this in 'R'? I am fairly new to this software,
so any help would be much appreciated.
Thank you in advance,
First, specify the plotting paradigm to be used (base, lattice, ggplot2)
If base, then the "new=TRUE" parameter in par (and don't complain to
me if you think new=TRUE is a weird construction for keeping the old
plot active and adding additional elements. I find it backwards to how
I think "new" would be interpreted.) You will need to repeated invoke
par)new="TRUE" before each addition.
If lattice, probably panel.superpose(), which I don't really
understand very well, but I'm learning slowly.
If ggplot2, someone with experience will come along and advise us.
--
David Winsemius, MD
West Hartford, CT
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