summary.nb

0th

Percentile

Print and summary function for neighbours and weights lists

The function prints summary measures for links in a neighbours list. If a matrix of coordinates is given as well, summary descriptive measures for the link lengths are also printed. Print and summary functions are also available for "listw" weights list objects, also reporting constants (S0, S1, S2) used in inference for global spatial autocorrelation statistics such as Moran's I, Geary's C, join-count tests and Getis-Ord G.

Keywords
spatial
Usage
"summary"(object, coords=NULL, longlat = NULL, scale = 1, ...) "print"(x, ...) "summary"(object, coords, longlat, zero.policy = NULL, scale = 1, ...) "print"(x, zero.policy = NULL, ...)
Arguments
object
an object of class nb
coords
matrix of region point coordinates or a SpatialPoints object
longlat
TRUE if point coordinates are longitude-latitude decimal degrees, in which case distances are measured in kilometers; if coords is a SpatialPoints object, the value is taken from the object itself
...
additional arguments affecting the output produced
x
an object of class nb
zero.policy
default NULL, use global option value; if FALSE stop with error for any empty neighbour sets
scale
passed through to stem() for control of plot length
See Also

plot.nb

Aliases
  • summary.nb
  • print.nb
  • summary.listw
  • print.listw
Examples
example(columbus)
coords <- coordinates(columbus)
col.gal.nb
summary(col.gal.nb, coords)
col.listw <- nb2listw(col.gal.nb, style="W")
col.listw
summary(col.listw)
Documentation reproduced from package spdep, version 0.6-9, License: GPL (>= 2)

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