Summarizing multiple variables in 1957
The summarize() verb allows you to summarize multiple variables at once. In this case, you'll use the median() function to find the median life expectancy and the max() function to find the maximum GDP per capita.
This exercise is part of the course
Introduction to the Tidyverse
Exercise instructions
- Find both the median life expectancy (
lifeExp) and the maximum GDP per capita (gdpPercap) in the year 1957, calling themmedianLifeExpandmaxGdpPercaprespectively. You can use themax()function to find the maximum.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
library(gapminder)
library(dplyr)
# Filter for 1957 then summarize the median life expectancy and the maximum GDP per capita