search for: correlegrams

...e amount to the same thing (in princple). The first camp likes to use row-standardized "weight matricies" in building covariance structures (to ensure there isn't too much dependence?). I find this very unappealing to many models. This camp doesn't seem to look at variograms or correlegrams as often--they just fit the model, which I also find unappealing. The covariance structures also tend to be very simple. It looks like there is more flexibility in the second camp. Mixed model procedures also seem to have spatial covariance structures. Is there a reason why there appears to be...