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  3. Case Study: Exploratory Data Analysis in R

Exercise

Visualizing colonialism votes

In an earlier exercise, you graphed the percentage of votes each year where the US voted "yes". Now you'll create that same graph, but only for votes related to colonialism.

Instructions

100 XP
  • Load the ggplot2 package.
  • Filter the votes_joined dataset for only votes by the United States relating to colonialism, then summarize() the percentage of votes that are "yes" within each year. Name the resulting column percent_yes and save the entire data frame as US_co_by_year.
  • Add a geom_line() layer to your ggplot() call to create a line graph of the percentage of "yes" votes on colonialism (percent_yes) cast by the US over time.