# Get the country for a countrycode (IS)
subset(MaddisonCountries, ISO=='GBR', country)
# Or
MaddisonCountries['GBR', 'country']
# Find Yugoslavia
subset(MaddisonCountries, grepl('Yugo', country), 1:3)
# number of countries by region
table(MaddisonCountries$region)
# What are "Western Offshoots"?
subset(MaddisonCountries, grepl('Of', region), c(country, ISO))
Run the code above in your browser using DataLab