Extract the number of planning units in an object.

number_of_planning_units(x)

# S4 method for ConservationProblem
number_of_planning_units(x)

# S4 method for OptimizationProblem
number_of_planning_units(x)

Arguments

x

problem() (i.e., ConservationProblem), OptimizationProblem, or Zones() object.

Value

integer number of planning units.

Examples

# load data
data(sim_pu_raster, sim_features)

# create problem
p <- problem(sim_pu_raster, sim_features) %>%
     add_min_set_objective() %>%
     add_relative_targets(0.2) %>%
     add_binary_decisions()

# print number of planning units
print(number_of_planning_units(p))
#> [1] 90