Report whether locations are terminal sites or not

This function returns a logical vector whose length equals the number of locations. The value in position i is TRUE if location number i is a terminal and FALSE if it is not. For the definition of terminals, see terminals().

Usage

is_terminal(sim, definition = c("ND", "RW"), ...)

Arguments

sim

a spatial interaction model object

definition

terminal definition, either "ND" (for Nystuen & Dacey, default) or "RW" (for Rihll & Wilson), see details.

...

additional parameters

Value

a logical vector with TRUE at the positions of locations that are terminals and FALSE for other locations.

See also

terminals()

Examples

positions <- matrix(rnorm(10 * 2), ncol = 2)
distances <- as.matrix(dist(positions))
production <- rep(1, 10)
attractiveness <- rep(1, 10)
model <- blvim(distances, production, 1.3, 2, attractiveness, bipartite = FALSE)
is_terminal(model)
#>     1     2     3     4     5     6     7     8     9    10 
#> FALSE  TRUE FALSE  TRUE FALSE FALSE FALSE  TRUE  TRUE  TRUE