  This is a "spatial autocorrelation analysis" of spatial autocorrelation. I
use the 1-dimension spatial autocorrelation function (ACF) and partial
autocorrelation function (PACF) to analyze four kinds of weight function in
common use for the 2-dimensional spatial autocorrelation model. The aim of this
study is at how to select a proper weight function to construct a spatial
contiguity matrix for spatial analysis. The scopes of application of different
weight functions are defined in terms of the characters of their ACFs and
PACFs.
