CurrentModule = SpatialDependence
The spatial lag of a variable is calculated with the values of the neighboring observations. If the spatial weights matrix is row-standardized, the spatial lag is the average value of the neighbors.
Spatial lags are calculated with the slag function or using the * operator with a spatial weights objects in the first position.
using SpatialDependence # hide
using SpatialDatasets # hide
guerry = sdataset("Guerry") # hide
W = polyneigh(guerry)
slag(W, guerry.Litercy)
W * guerry.Litercy