Introduction
Recently, I began a series on exploratory data analysis (EDA), and I have written about descriptive statistics, box plots, and kernel density plots so far. As previously mentioned in my post on box plots, there is a way to combine box plots and kernel density plots. This combination results in violin plots, and I will show how to create them in R today.
Continuing from my previous posts on EDA, I will use 2 univariate data sets. One is the “ozone” data vector that is part of the “airquality” data set that is built into R; this data set contains data on New York’s air pollution. The other is a simulated data set of ozone pollution in a fictitious city called “Ozonopolis”. It is important to remember that the ozone data from New York has missing values, and this has created complications that needed to be…
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