write.nb.gal {spdep}R Documentation

Write a neighbours list as a GAL lattice file

Description

Write a neighbours list as a GAL lattice file, may also use newer GeoDa header format

Usage

write.nb.gal(nb, file, oldstyle=TRUE, shpfile=NULL, ind=NULL)

Arguments

nb an object of class nb with a list of integer vectors containing neighbour region number ids.
file name of file with GAL lattice data
oldstyle if TRUE, first line of file contains only number of spatial units, if FALSE, uses newer GeoDa style
shpfile Shapefile name taken from GAL file for this dataset
ind region id indicator variable name

Author(s)

Roger Bivand Roger.Bivand@nhh.no

See Also

read.gal

Examples

data(columbus)
ind <- rownames(columbus)
GALfile <- tempfile("GAL")
write.nb.gal(col.gal.nb, GALfile, oldstyle=FALSE, ind="ind")
col.queen <- read.gal(GALfile, region.id=ind)
unlink(GALfile)
summary(diffnb(col.queen, col.gal.nb))

[Package spdep version 0.3-12 Index]