California Contributors plots In this exercise, I plot the amounts raised in terms of political contributions by the top 10 candidates within their respective top 10 cities in California. The data used was from the year 2016. Join dataframes # Make sure you use vroom() as it is significantly faster …

Share of renewable energy production in the world n this example, I examine data from the The National Bureau of Economic Research (NBER) on energy production in more than 150 countries since 1800. The following is a description of the variables variable class description variable character Variable …