Extract the names of the features in an object.

feature_names(x)

# S4 method for ProjectProblem
feature_names(x)

Arguments

x

ProjectProblem.

Value

character feature names.

Examples

# load data
data(sim_projects, sim_features, sim_actions)

# build problem with default solver
p <- problem(sim_projects, sim_actions, sim_features,
             "name", "success", "name", "cost", "name") %>%
     add_max_richness_objective(budget = 200) %>%
     add_binary_decisions() %>%
     add_default_solver()

# print problem
print(p)
#> Project Prioritization Problem
#>   actions          F1_action, F2_action, F3_action, ... (6 actions)
#>   projects         F1_project, F2_project, F3_project, ... (6 projects)
#>   features         F1, F2, F3, ... (5 features)
#>   action costs:    min: 0, max: 103.22583
#>   project success: min: 0.81379, max: 1
#>   objective:       Maximum richness objective [budget (200)]
#>   targets:         none
#>   weights:         default
#>   decisions        Binary decision 
#>   constraints:     <none>
#>   solver:          Gurobi [first_feasible (0), gap (0), number_solutions (1), presolve (2), solution_pool_method (2), threads (1), time_limit (2147483647), time_limit (2147483647), verbose (1)]

# print feature names
feature_names(p)
#> [1] "F1" "F2" "F3" "F4" "F5"