Helper function to get neighbors
Usage
getSW(shp, ni, include_self = T)
Arguments
- shp
an sf object with one polygon per row
- ni
integer; neighbor order (0 = identity, 1 = first-order neighbors)
- include_self
logical; whether to include each unit as its own neighbor
Value
a binary matrix of spatial weights
Examples
if (FALSE) { # \dontrun{
# after loading an sf shapefile:
SW <- getSW(shp = my_shapefile, ni = 1, include_self = FALSE)
} # }