You might want to contact Dan Griffith, Dept of Geography at Syracuse
University - he is working on an estimator for this exact case.
As far as I know, there is no built-in model for spatial autocorrelation in
a poisson regression (though there may be some code out there - probably for
GAUSS or something - you'd have to code the autocorrelation into the maximum
likelihood estimator - pretty sticky stuff).
Good luck,
Darla Munroe
--
***************************************
Darla Munroe, Ph.D.
Postdoctoral Fellow
Center for the Study of Institutions,
Population, and Environmental Change
Indiana University
408 N. Indiana
Bloomington, IN 47408
[EMAIL PROTECTED]
php.indiana.edu/~dmunroe
-----Original Message-----
From: Ben Wheeler [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 19, 2001 7:49 AM
To: [EMAIL PROTECTED]
Subject: AI-GEOSTATS: Spatial poisson regression software?
Dear all,
Please forgive the newbie style question...I've looked on the website
at software listings and can't quite work out what I'm after.
I'm running poisson regressions for a large number of small areas
(several thousand contiguous polygons) - predicting counts of events
with several predictor variables for each small area. I'd like to be
able to adjust these models to account for spatial autocorrelation.
Does anyone know of software (ideally free/cheap) that will do this in
a reasonably straightforward way? Either stand-alone or as an add-on to
Arc/info or arcview. I can also use Stata, SAS, SPSS etc.
Any ideas much appreciated,
Thanks a lot
Cheers
Ben
-------------------------
Ben Wheeler
MRC Research Student
Department of Social Medicine
University of Bristol
UK
e-mail [EMAIL PROTECTED]
-------------------------
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