Extract the common cost matrix from a collection of spatial interaction models — costs.sim_list • blvim

Extract the common cost matrix from a collection of spatial interaction models

Usage

# S3 method for class 'sim_list'
costs(sim, ...)

Arguments

sim: a collection of spatial interaction models, an object of class sim_list
...: additional parameters

Value

the cost matrix

See also

costs(), grid_blvim()

Examples

positions <- matrix(rnorm(15 * 2), ncol = 2)
distances <- as.matrix(dist(positions))
production <- rep(1, 15)
attractiveness <- rep(1, 15)
all_flows <- grid_blvim(distances,
  production,
  c(1.1, 1.25, 1.5),
  c(1, 2, 3),
  attractiveness,
  epsilon = 0.1
)
## should be TRUE
identical(distances, costs(all_flows))
#> [1] TRUE