Generate spatial weights matrix for a grid

Create a spatial weights matrix based on a square grid structure.

Usage

sim_grid_listw(nrow, ncol = nrow, style = "W", type = c("queen", "rook"))

Arguments

nrow

the number of rows in the grid.

ncol

defaults to nrow. The number columns in the grid.

style

the spatial weights style. Defaults to row standardized. See spdep::nb2listw() for more.

type

default "queen". Can also be "rook".

Value

A listw object by spdep package

Examples

sim_grid_listw(10, 5)
#> Characteristics of weights list object:
#> Neighbour list object:
#> Number of regions: 50 
#> Number of nonzero links: 314 
#> Percentage nonzero weights: 12.56 
#> Average number of links: 6.28 
#> 
#> Weights style: W 
#> Weights constants summary:
#>    n   nn S0       S1       S2
#> W 50 2500 50 16.82458 203.3558