Summarizing by continent and year
Instead of grouping just by year, or just by continent, you'll now group by both continent and year to summarize within each.
Bu egzersiz
Introduction to the Tidyverse
kursunun bir parçasıdırEgzersiz talimatları
- Find the median life expectancy (
lifeExp) and maximum GDP per capita (gdpPercap) within each combination of continent and year, saving them intomedianLifeExpandmaxGdpPercap, respectively.
Uygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
library(gapminder)
library(dplyr)
# Find median life expectancy and maximum GDP per capita in each continent/year combination