Summarizing by year
In a previous exercise, you found the median life expectancy and the maximum GDP per capita in the year 1957. Now, you'll perform those two summaries within each year in the dataset, using the group_by verb.
Questo esercizio fa parte del corso
Introduction to the Tidyverse
Istruzioni dell'esercizio
- Find the median life expectancy (
lifeExp) and maximum GDP per capita (gdpPercap) within each year, saving them intomedianLifeExpandmaxGdpPercap, respectively.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
library(gapminder)
library(dplyr)
# Find median life expectancy and maximum GDP per capita in each year