some address extraction apparently result in country abbreviations that are not recognized, and therefore country codes come back as NA. A warning is given so users can fix on their own, but we can insert a search/correction for these and save users the trouble.
6 codes from your data failed to match with a country code in the map
failedCodes failedCountries
[1,] NA "dominican rep"
[2,] NA "fr polynesia"
[3,] NA "peoples r china"
[4,] NA "rep congo"
[5,] "REU" "reunion"
[6,] NA "trinid & tobago"
some address extraction apparently result in country abbreviations that are not recognized, and therefore country codes come back as NA. A warning is given so users can fix on their own, but we can insert a search/correction for these and save users the trouble.