[R] plot map of areas

Liaw, Andy andy_liaw at merck.com
Fri Nov 21 14:18:09 CET 2003

Is the contributed package `deldir' on CRAN what you're looking for?


> From: Pascal A. Niklaus [mailto:Pascal.Niklaus at unibas.ch] 
> Hi all,
> Given a number of points (x,y) in a plane, I'd like to plot a map of 
> polygons, so that
>     1) each polygon contains exactly one point
>     2) the polygon defines the area for which this specific point is 
> closer than any other point.
> It's a bit like a map of areas "influenced" by that point, and it's 
> obviously a matter of intersecting the perpendicular 
> bisectors between 
> adjacent points.
> I believe this type of map has a name, but I can't remember how it's 
> called.
> Is there a function somewhere in a R package that may do this?
> Thanks for your help
> Pascal

More information about the R-help mailing list