Extract the number of zones in an object.

number_of_zones(x)

# S4 method for ConservationProblem
number_of_zones(x)

# S4 method for OptimizationProblem
number_of_zones(x)

# S4 method for ZonesRaster
number_of_zones(x)

# S4 method for ZonesCharacter
number_of_zones(x)

Arguments

x

ConservationProblem-class, OptimizationProblem-class,or Zones object.

Value

integer number of zones.

Examples

# load data data(sim_pu_zones_stack, sim_features_zones) # print number of zones in a Zones object print(number_of_zones(sim_features_zones))
#> [1] 3
# create problem with multiple zones p <- problem(sim_pu_zones_stack, sim_features_zones) %>% add_min_set_objective() %>% add_relative_targets(matrix(0.2, ncol = 3, nrow = 5)) %>% add_binary_decisions() # print number of zones in the problem print(number_of_zones(p))
#> [1] 3