Compute the trade balance (exports minus imports) for a reporter country against each trading partner.
Examples
# \donttest{
op <- options(comtrade.cache_dir = tempdir())
ct_balance("GBR", year = 2023)
#> ℹ No API key set. Using preview endpoint (500 records max, no descriptions).
#> ℹ For full access (100k records, descriptions), get a free key at
#> <https://comtradedeveloper.un.org/>
#> ℹ Then run: `ct_set_key("your-key")`
#> partner partner_desc year exports imports balance
#> 1 0 World 2023 231805144781 582770820322 -350965675541
options(op)
# }