blvim (version 0.1.1)

grid_attractiveness: Extract all the attractivenesses from a collection of spatial interaction models

Description

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

Usage

grid_attractiveness(sim_list, ...)

Value

a matrix of attractivenesses at the destination locations

Arguments

sim_list

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

...

additional parameters for the attractiveness() function

See Also

attractiveness() and grid_blvim()

Examples

distances <- french_cities_distances[1:15, 1:15] / 1000 ## convert to km
production <- log(french_cities$population[1:15])
attractiveness <- log(french_cities$area[1:15])
all_flows <- grid_blvim(
  distances, production, c(1.1, 1.25, 1.5),
  c(1, 2, 3, 4) / 500, attractiveness,
  epsilon = 0.1
)
g_Z <- grid_attractiveness(all_flows)
## should be 12 rows (3 times 4 parameter pairs) and 15 columns (15
## destination locations)
dim(g_Z)