sobczak at express.cites.uiuc.edu
Thu Apr 15 23:00:20 CDT 2004
I was hoping that somebody might be able to help with my problem. I'm sure
others have run in to it plenty of times.
I've recently downloaded the United States shapefile from the Tigerfile
link off of the Census website. I dissolved the boundaries by state so
that in the end I only had one boundary and one line in the attribute table
for each state (prior to this each island off the coast of California had a
separate boundary and line in the attribute table). While using the latest
version of GeoDa (version 095i) I created first order rook weights using
this file. However, when creating a histogram of the weights file, I found
that some of the states had a weight of zero. Upon further investigation,
I found that the number of neighbors computed by the weights was
incorrect. I assume something is wrong with the shapfile. Is there
anything I can do to fix this?
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