Filter the data for plotting
Use the filter() function of dplyr to remove non-European countries. A vector called european_countries has been created that contains all European countries which should remain in the data set. Here, the %in% operator introduced in the video might come in handy. Note that only a subset of European countries for which enough data exist is retained. For instance, Poland is missing.
Deze oefening maakt deel uit van de cursus
Communicating with Data in the Tidyverse
Oefeninstructies
- Print
european_countriesto the console. - Apply the
filter()function to only retain countries which also appear in theeuropean_countriesvector. Use the%in%operator to retain only values that appear in the right-hand side of the operator.
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Examine the European countries vector
___
# Only retain European countries
ilo_data <- ilo_data %>%
___(___)