List all countries contained in a survey
Arguments
- survey
a DOI or url to get the survey from, or a
survey()
object (in which case only cleaning is done).- country.column
column in the survey indicating the country
- ...
further arguments for
get_survey()
Examples
data(polymod)
survey_countries(polymod)
#> [1] "Italy" "Germany" "Luxembourg" "Netherlands"
#> [5] "Poland" "United Kingdom" "Finland" "Belgium"