Number of features

Extract the number of features in an object.

Usage

number_of_features(x, ...)

# S3 method for ConservationProblem
number_of_features(x, ...)

# S3 method for OptimizationProblem
number_of_features(x, ...)

# S3 method for ZonesSpatRaster
number_of_features(x, ...)

# S3 method for ZonesRaster
number_of_features(x, ...)

# S3 method for ZonesCharacter
number_of_features(x, ...)

Arguments

x

A problem(), optimization_problem(), or zones() object.

...

not used.

Value

An integer number of features.

Examples

# \dontrun{
# load data
sim_pu_raster <- get_sim_pu_raster()
sim_features <- get_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 features
print(number_of_features(p))
#> [1] 5
# }