R-cran-spdep

Spatial dependence: weighting schemes, statistics, and models

A collection of functions to create spatial weights matrix objects from polygon contiguities, from point patterns by distance and tesselations, for summarising these objects, and for permitting their use in spatial data analysis, including regional aggregation by minimum spanning tree; a collection of tests for spatial autocorrelation, including global Moran’s I, APLE, Geary’s C, Hubert/Mantel general cross product statistic, Empirical Bayes estimates and Assuno/Reis Index, Getis/Ord G and multicoloured join count statistics, local Moran’s I and Getis/Ord G, saddlepoint approximations and exact tests for global and local Moran’s I; and functions for estimating spatial simultaneous autoregressive SAR lag and error models, impact measures for lag models, weighted and unweighted SAR and CAR spatial regression models, semi-parametric and Moran eigenvector spatial filtering, GM SAR error models, and generalized spatial two stage least squares models.