| adjacency.matrix | Return an adjacency matrix for a square lattice. | 
| copCAR | Fit copCAR model to discrete areal data. | 
| negbinomial | Family function for negative binomial GLMs. | 
| rcopCAR | Simulate areal data. | 
| residuals.copCAR | Extract model residuals. | 
| summary.copCAR | Print a summary of a copCAR model fit. | 
| vcov.copCAR | Return the estimated covariance matrix for a 'copCAR' model object. |