I am downloading data from google trends using R. Using this code
library(gtrendsR)
data(countries)
city_code <- function(geo){
codes <- unique(countries$sub_code[substr(countries$sub_code, 1,5) == geo])
if(length(codes) > 1){
countries[countries$sub_code %in% codes[2:length(codes)], 2:3]
} else{
message('No city code for this geo')
}
}
I am able to identify 212 statistical areas in the United States. By state, it looks something like this
https://i.sstatic.net/diCju.jpg
My issue is that I don't understand what these statistical areas are correlated too. They seem to most resemble "combined statistical areas" but sometimes they are metropolitan statistical areas. The main issue is I don't know where they get "US-AL-606" as the code for Dothan Alabama. It captures Dothan Alabama from google trends but I can't find anything online that makes use of the same coding scheme were Dothan Alabama = "US-AL-606."
Does anybody have experience with this or know what direction to point me in? I want to be able to map this information to their corresponding counties at some point
These are the Nielsen Direct Marketing Areas (DMAs). They correspond to areas where people receive similar television and radio offerings.