| add_island_cols | Add island classification columns to a data frame |
| aruba | A.R.U.B.A.: Annotated Reference for Under-coded Border Areas |
| classify | Classify countries and territories |
| islands | Reference list of countries and territories with small-island classifications |
| island_lookup | Look up rows in the islands reference list |
| is_sids | Classify countries and territories |
| is_small_island | Classify countries and territories |
| is_snij | Classify countries and territories |
| small_islands | Return a filtered subset of small-island states and territories |