[R] maptools/spatial analysis question
Roger.bivand at nhh.no
Tue Dec 20 12:25:32 CET 2011
Albert-Jan Roskam <fomcl <at> yahoo.com> writes:
> I am using maptools to plot air quality data on a map. Each measurement point
is mapped to a postal code area.
> This yields pictures with discrete borders, like so:
> The problem is that the size of a postal code area doesn't mean much in this
context. Moreover, only a small
> minority of all the postal code areas has a measurement sation. Are there any
ways/tools to "interpolate"
> the various (strategically chosen) measurement stations? I am looking for
sensible ways to create plots
> like this:
Have you looked at the section on geostatistics and interpolation on the
"Spatial" task view on CRAN:
You may also find the R-sig-geo list more appropriate.
Hope this helps,
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