set_capacity: Set Resource Parameters

In simmer: Discrete-Event Simulation for R

Set Resource Parameters

Description

Activities for dynamically modifying a resource's server capacity or queue size, by name or a previously selected one. Resources must be defined in the simulation environment (see add_resource).

Usage

set_capacity(.trj, resource, value, mod = c(NA, "+", "*"), ..., tag)

set_capacity_selected(.trj, value, id = 0, mod = c(NA, "+", "*"), ..., tag)

set_queue_size(.trj, resource, value, mod = c(NA, "+", "*"), ..., tag)

set_queue_size_selected(.trj, value, id = 0, mod = c(NA, "+", "*"), ...,
  tag)

Arguments

.trj	the trajectory object.
resource	the name of the resource.
value	numeric value to set, or a callable object (a function) which must return a numeric value.
mod	if set, values modify the attributes rather than substituting them.
...	unused.
tag	activity tag name to perform named rollbacks (see rollback) or just to better identify your activities.
id	selection identifier for nested usage.

Value

Returns the trajectory object.

See Also

select, seize, release, seize_selected, release_selected, get_capacity, get_queue_size

Examples

## a resource with a queue size equal to the number of arrivals waiting
traj <- trajectory() %>%
  set_queue_size("res", 1, mod="+") %>%
  seize("res") %>%
  set_queue_size("res", -1, mod="+") %>%
  timeout(10) %>%
  release("res")

simmer() %>%
  add_resource("res", 1, 0) %>%
  add_generator("dummy", traj, at(0:2)) %>%
  run() %>%
  get_mon_resources()

simmer documentation built on Sept. 28, 2024, 1:07 a.m.