 
 
Terry Griffin, Ph.D.
Assistant Professor - Economics
University of Arkansas - Division of Agriculture
501.671.2182
tgriffin@uaex.edu 


>>> Scott L Minkoff <Scott.Minkoff@Colorado.EDU> 3/11/2010 12:57 PM >>>
Hello,



I am new to analyzing spatial data in R and was having trouble finding an
answer to my question in the list archives.  I am interested in doing
spatial regression with an inverse distance matrix.  To do this, I created
the weights matrix outside of R (in ArcGIS) and then used the mat2listw
function to convert it to a list that could be used in a spatial regression
with the spdep package.  I am wondering whether this is an appropriate way
to do this and, if not, what would be?



Thanks in advance,

Scott Minkoff

University of Colorado at Boulder

Department of Political Science

Scott,
 
I had a similar question a few years ago that Roger Bivand helped with on this discussion forum.  The string can be found at: http://www.mail-archive.com/r-sig-geo@stat.math.ethz.ch/msg00335.html 
I was importing a shape file into R and then creating an inverse distance weights matrix within R using spdep and rgdal.
 
HTH,

Terry


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