Exercise

Visualizing trends in topics for one country

You can now visualize the trends in percentage "yes" over time for all six topics side-by-side. Here, you'll visualize them just for the United States.

Instructions

100 XP

Load the ggplot2 package.
Filter the by_country_year_topic dataset for just the United States and save the result as US_by_country_year_topic.
Use this dataset to graph the percentage "yes" over time for the United States, faceting by topic.