| columbus {spdep} | R Documentation |
The columbus data frame has 49 rows and 22 columns.
Unit of analysis: 49 neighbourhoods in Columbus, OH, 1980 data.
In addition the data set includes a polylist object polys
with the boundaries of the neighbourhoods, a matrix of polygon centroids
coords, and col.gal.nb, the neighbours list
from an original GAL-format file. The matrix bbs is DEPRECATED, but retained for other packages using this data set.
data(columbus)
This data frame contains the following columns:
The row names of columbus and the region.id attribute of
polys are set to columbus$NEIGNO.
All source data files prepared by Luc Anselin, Spatial Analysis Laboratory, Department of Agricultural and Consumer Economics, University of Illinois, Urbana-Champaign, http://sal.agecon.uiuc.edu/datasets/columbus.zip.
Anselin, Luc. 1988. Spatial econometrics: methods and models. Dordrecht: Kluwer Academic, Table 12.1 p. 189.
columbus <- readShapePoly(system.file("etc/shapes/columbus.shp",
package="spdep")[1])
col.gal.nb <- read.gal(system.file("etc/weights/columbus.gal",
package="spdep")[1])