Dear List,

I am using errorsarlm (spdep) to measure SAR autocorrelation but failed as
detailed below.

system: windows XP and Vista
RAM : 2G (XP) and 4G(Vista)

sample size : 4500
variable: 4
nb10<-dnearneigh(coords,0,9)

the error issue: out of memory of 180 Mb

The similar messages in the archive were checked and tried but failed to
solve the issues.
1. enlarging the R space to 2047 Mb
2. updating the neighboring unit from 0.5 to 9

Please kindly help how to solve the problem, for I found SAR and CAR seem to
be more reliable for autocorrelation than autocovariate.

Thanks

Elaine

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