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Columbus OH spatial analysis data set

Source: R/columbus.R
columbus.Rd

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.

Usage

columbus

Format

This data frame contains the following columns:

  • AREA: computed by ArcView

  • PERIMETER: computed by ArcView

  • COLUMBUS_: internal polygon ID (ignore)

  • COLUMBUS_I: another internal polygon ID (ignore)

  • POLYID: yet another polygon ID

  • NEIG: neighborhood id value (1-49); conforms to id value used in Spatial Econometrics book.

  • HOVAL: housing value (in 1,000 USD)

  • INC: household income (in 1,000 USD)

  • CRIME: residential burglaries and vehicle thefts per thousand households in the neighborhood

  • OPEN: open space in neighborhood

  • PLUMB: percentage housing units without plumbing

  • DISCBD: distance to CBD

  • X: x coordinate (in arbitrary digitizing units, not polygon coordinates)

  • Y: y coordinate (in arbitrary digitizing units, not polygon coordinates)

  • NSA: north-south dummy (North=1)

  • NSB: north-south dummy (North=1)

  • EW: east-west dummy (East=1)

  • CP: core-periphery dummy (Core=1)

  • THOUS: constant=1,000

  • NEIGNO: NEIG+1,000, alternative neighborhood id value

Source

Anselin, Luc. 1988. Spatial econometrics: methods and models. Dordrecht: Kluwer Academic, Table 12.1 p. 189.

Details

The row names of columbus and the region.id attribute of polys are set to columbus$NEIGNO.

Note

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.

Examples

if (requireNamespace("sf", quietly = TRUE)) {
  columbus <- sf::st_read(system.file("shapes/columbus.gpkg", package="spData")[1])
  plot(sf::st_geometry(columbus))
}
#> Reading layer `columbus' from data source 
#>   `/home/runner/work/_temp/Library/spData/shapes/columbus.gpkg' 
#>   using driver `GPKG'
#> Simple feature collection with 49 features and 20 fields
#> Geometry type: POLYGON
#> Dimension:     XY
#> Bounding box:  xmin: 5.874907 ymin: 10.78863 xmax: 11.28742 ymax: 14.74245
#> Projected CRS: Undefined Cartesian SRS with unknown unit


if (requireNamespace("spdep", quietly = TRUE)) {
  library(spdep)
  col.gal.nb <- read.gal(system.file("weights/columbus.gal", package="spData")[1])
}