hi all,

i have one question ***does it matter if the KNN spatial weights matrix is
asymmetric or symmetric for linear spatial autoregressive models? *** i am
getting slightly different findings depending on the weights matrix
specification for the Lagrange multiplier diagnostic for spatial dependence.
i am using Bivand's spdep package for these analysis. i've read that GeoDA
can't fit KNN spatial models due to the asymmetry (for now), but that using
KNN is legitimate for these spatial autoregresive models. however, i could
use the asymmetric version or the symmetric one (though making KNN symmetric
sounds a bit strange to me). any insight is greatly appreciated!!

thanks and happy holidays, dustin
<r-sig-geo@stat.math.ethz.ch>

-- 
Dustin T. Duncan, ScM
Doctoral Candidate
Harvard School of Public Health
Department of Society, Human Development, and Health

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