Extract all the attractivenesses from a collection of spatial interaction models

The function extract attractivenesses from all the spatial interaction models of the collection and returns then in a matrix in which each row corresponds to a model and each column to a destination location.

Usage

grid_attractiveness(sim_list, ...)

Arguments

sim_list

a collection of spatial interaction models, an object of class sim_list

...

additional parameters of the attractiveness() function

Value

a matrix of attractivenesses at the destination locations

See also

attractiveness() and 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
)
g_Z <- grid_attractiveness(all_flows)
## should be 9 rows (3 times 3 parameter pairs) and 15 columns (15 destination
## sites)
dim(g_Z)
#> [1]  9 15