Summarizing by year

The summarize() function is especially useful because it can be used within groups.

For example, you might like to know how much the average "agreeableness" of countries changed from year to year. To examine this, you can use group_by() to perform your summary not for the entire dataset, but within each year.

Bu egzersiz

Case Study: Exploratory Data Analysis in R

kursunun bir parçasıdır

Kursu Görüntüle

Egzersiz talimatları

Add a group_by() to your code to summarize() within each year.

Uygulamalı interaktif egzersiz

Bu örnek kodu tamamlayarak bu egzersizi bitirin.

# Change this code to summarize by year
votes_processed %>%
  summarize(total = n(),
            percent_yes = mean(vote == 1))

Kodu Düzenle ve Çalıştır