Visualizing median GDP per capita by continent

A bar plot is useful for visualizing summary statistics, such as the median GDP in each continent.

This exercise is part of the course

Introduction to the Tidyverse

Exercise instructions

Use group_by() and summarize() to find the median GDP per capita within each continent in the year 1952, calling the output column medianGdpPercap. Use the assignment operator <- to save it to a dataset called by_continent.
Use the by_continent dataset to create a bar plot showing the median GDP per capita in each continent.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

library(gapminder)
library(dplyr)
library(ggplot2)

# Summarize the median gdpPercap by continent in 1952


# Create a bar plot showing medianGdp by continent

Edit and Run Code