One of the most common frustrations for R beginners is plotting time-series data. You create a beautiful bar chart, but ggplot2 places April before January. Why does this happen? By default, R treats text variables (character strings) alphabetically. Since “A” comes before “J”, April appears first. In this tutorial, we will learn how to force… Continue reading How to Order Months Chronologically in ggplot2 (Fixing Alphabetical Sort)