Description
Spatial weight matrices are represented as a sparse matrix. When a spatial weights matrix becomes too dense, operations can become very slow or run out of memory.
Solution
No action is required. However, it is recommended that you specify a neighborhood configuration that results in fewer total neighbors. If using a distance band, consider reducing its size. If using polygons, consider using contiguity instead of number of neighbors or a distance band. Alternatively, if using point data, consider using Delaunay triangulation or number of neighbors.