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Thanks, Ill look into alternative ways of finding the neighborhood matrix. Both the vignette's were helpful. Maaz [[alternative HTML version deleted]]

Hello, Can anyone tell me what's the most appropriate method to aggregate census tract data to the county level? Best Maaz [[alternative HTML version deleted]]

Hello, Does anyone know if there's a way that the package 'spdep' can give standard errors of the prediction (for either SAR or CAR model)? I'm using the spautolm function. Regards, Maaz PhD Candidate and Graduate Research Assistant...

Hi, I'm trying to extract the 'neighborhood matrix' from the poly2nb function. I can see the neighbors for each polygon, e.g. 1 has neighbors 2, 3, 5, 6. I try to convert this matrix into a data frame...

Hello, I am using glmer to model a mixed effects logistic regression. The output below shows the random intercepts and slope (zcwcexp) for 22 groups. I was wondering if there is any way of finding whether these are statistically significant...

Juta, Thanks for your reply. My question also has a methodological dimension to it. Would it be OK to aggregate census tract data (on lets say female headed household) to the county level by simply adding all the tracts together...

Thanks for the clarification. Maaz On May 30, 2017 9:00 AM, "Ben Bolker" <bbolker at gmail.com> wrote: > Unfortunately, you *can't* test significance of conditional modes (the > values that ranef()) returns; this is the price you pay for...