Dear all,
I would like to compare the performance of linear regression model with SAR
models. One of the measures that I want to use is R squared.
Prof. Roger Bivand mentioned in r-sig-geo that "There is no direct equivalent
to the OLS R-squared, these models are fitted by maximum likelihood. If you
want something like an R-squared, try the Nagelkerke R-bar-squared, based on
the likelihood. You should then compare this with a Nagelkerke value for your
OLS model".
My question is:
How can I calculate a Nagelkerke value for OLS in R and compare it with
Nagelkerke value form summary function in SAR Models.
Thank you so much
Cheers,
SJA
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