Thanks to Kit Baum, -usswm- US spatial weight matrices are available from
the SSC.
The do-file includes examples of mapping the results of -spatlsa- for local
spatial autocorrelation. This requires Maurizio Pisati's -tmap- (version
2.0, -ssc inst tmap-), the US county map (-ssc desc usmaps2-), and a slight
change to -spatlsa-. On line 282 the matrix column name needs to be changed
from "p-value" to "pvalue."
To install:
ssc desc usswm
net get usswm
'USSWM': module to provide US state and county spatial weight (contiguity)
matrices
DESCRIPTION/AUTHOR(S)
This package contains two Stata data files that are US state and county
level (48 contiguous states) spatial weight matrices. These can be used with
Maurizio Pisati's STB-60 sg162 "Tools for spatial data analysis." A do-file
illustrates their usage.
KW: spatial
KW: states
KW: counties
KW: GIS
KW: matrices
Scott
*
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