Re: [R-sig-Geo] Identifying overlapping polygons

2007-02-11 Thread Adrian Baddeley
Andrew Niccolai writes: > I would like to identify every polygon from the first object > [...] that completely or even partially [...] > falls within any given polygon from the second object (crown areas). This can be done in the package 'spatstat'. If your polygons are simply connecte

[R-sig-Geo] huge problem with geoR application

2007-02-11 Thread Yong Li
Dear All, I have a huge problem with geoR. When I try to build a grid (1000 x 1000) and use krige to do kriging, I am told that R can not handle the vector size of 677mb. I have tried to increase R memory use allocation by -max-mem-size=2500M or memory.limit(size=2500M). It did not work either. C

[R-sig-Geo] variogram on 3D points with gstat ?

2007-02-11 Thread Matthew Perry
Hey folks, I'm trying to use R/gstat to krige data in 3 dimensions. Is this possible? I haven't had much luck... > library(gstat) Loading required package: sp > d <- read.table("C:\\Workspace\\temp\\points.txt",sep="\t",header=TRUE) > coordinates(d) = ~x+y+z > summary(d) Object of class SpatialP