zone_names: Zone names

In prioritizr: Systematic Conservation Prioritization in R

Zone names

Description

Extract the names of zones in an object.

Usage

zone_names(x, ...)

## S3 method for class 'ConservationProblem'
zone_names(x, ...)

## S3 method for class 'MultiConservationProblem'
zone_names(x, ...)

## S3 method for class 'ZonesSpatRaster'
zone_names(x, ...)

## S3 method for class 'ZonesCharacter'
zone_names(x, ...)

Arguments

x	problem(), multi_problem(), or Zones() object.
...	not used.

Value

A character vector of zone names.

Examples

# load data
sim_zones_pu_raster <- get_sim_zones_pu_raster()
sim_zones_features <- get_sim_zones_features()

# print names of zones in a Zones object
print(zone_names(sim_zones_features))
# create problem with multiple zones
p <-
  problem(sim_zones_pu_raster, sim_zones_features) %>%
  add_min_set_objective() %>%
  add_relative_targets(matrix(0.2, ncol = 3, nrow = 5)) %>%
  add_binary_decisions()

# print zone names in problem
print(zone_names(p))

# create two example problems
p1 <-
  problem(sim_zones_pu_raster, sim_zones_features) %>%
  add_min_set_objective() %>%
  add_relative_targets(matrix(0.2, ncol = 3, nrow = 5)) %>%
  add_binary_decisions()

p2 <-
  problem(sim_zones_pu_raster, sim_zones_features) %>%
  add_min_set_objective() %>%
  add_relative_targets(matrix(0.1, ncol = 3, nrow = 5)) %>%
  add_binary_decisions()

# create multi-objective problem
mp <-
  multi_problem(p1, p2) %>%
  add_hier_approach(rel_tol = 0.1, verbose = FALSE) %>%
  add_gurobi_solver(gap = 0, verbose = FALSE)

# print zone names
print(zone_names(mp))

prioritizr documentation built on Sept. 24, 2026, 5:07 p.m.