Re: [R] plotting x y z data from an irregular grid

2011-07-17 Thread Uwe Ligges
Perhaps you want to ask on the SIG mailing list for spatial statistics. I guess there is something available that makes use of cloud() [from lattice], plot3d [from rgl] or scatterplot3d() [identically names package] or others to satisfy your needs of plotting points atop of a map, for example.

[R] plotting x y z data from an irregular grid

2011-07-14 Thread erika
Hi, I'm trying to plot some data (z) that is linked to latlong coordinates (xy). These coordinates are not however on a regular grid. I also have some shapefiles on which I would like to overlay the data. I can plot the shapefiles (country/city outlines) and overplot the data, but only using