write.nb.gal: Write a neighbours list as a GAL lattice file
In spdep: Spatial Dependence: Weighting Schemes, Statistics

write.nb.gal

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

Examples

col.gal.nb <- read.gal(system.file("weights/columbus.gal", package="spData")[1])
GALfile <- tempfile("GAL")
write.nb.gal(col.gal.nb, GALfile)
col.queen <- read.gal(GALfile)
summary(diffnb(col.queen, col.gal.nb))

spdep documentation built on Sept. 13, 2024, 5:07 p.m.