Summarize by country, year, and topic
In previous exercises, you summarized the votes dataset by country, by year, and by country-year combination.
Now that you have topic
as an additional variable, you can summarize the votes for each combination of country, year, and topic (e.g. for the United States in 2013 on the topic of nuclear weapons.)
Diese Übung ist Teil des Kurses
Case Study: Exploratory Data Analysis in R
Anleitung zur Übung
- Print the
votes_tidied
dataset to the console. - In a single
summarize()
call, compute both the total number of votes (total
) and the percentage of "yes" votes (percent_yes
) for each combination of country, year, and topic. Save this asby_country_year_topic
. Make sure that youungroup()
after summarizing. - Print the
by_country_year_topic
dataset to the console.
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
# Print votes_tidied
# Summarize the percentage "yes" per country-year-topic
# Print by_country_year_topic