On Apr 22, 2010, at 2:24 PM, Kevin Wright wrote:
Mixing base/lattice graphics can be tricky, but is possible.
http://www.bioconductor.org/CRAN/web/packages/gridBase/vignettes/gridBase.pdf
That could be quite useful in the future. Thanks for that.
Also, did you look at Chapter 13 of the lattice book?
http://lmdvr.r-forge.r-project.org/figures/figures.html
I did look at the actual book, and upon doing so yet again, I would
say that my comments were an accurate, if pithy, summary of the
message I take away from what very little regarding base graphics
appears in that chapter.
--
David.
Kevin
On Wed, Apr 21, 2010 at 2:08 PM, David Winsemius <dwinsem...@comcast.net
> wrote:
On Apr 21, 2010, at 2:27 PM, Simon Goodman wrote:
I've generated a levelplot showing the density distribution of a
species
derived from survey transects, with lon, lat co-ordinates.
I'd like to overlay this on a map of the study region specified by:
map('worldHires', xlim = range(mlon), ylim = range(mlat)), where
mlon, mlat
specifies the study region.
> ?map
No documentation for 'map' in specified packages and libraries:
you could try '??map'
> ??map
> require(maps)
Loading required package: maps
> map
So map uses base graphics.
I've tried plotting the map first, then using the options:
'add=TRUE,
axes=FALSE' in the levelplot,
levelplot is a lattice function. You will have failure with most
efforts to mix base and grid graphics.
but this doesn't work - a new plot is
generated for the level plot despite the 'add' option. If I try to
add the
map on top of the level plot, they are not to the same scale.
Any suggestions on how to get round this.
Thanks
--
David Winsemius, MD
West Hartford, CT
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