_ly()</code> to leverage <strong>ggplot2</strong>’s consistent and expressive interface for exploring statistical summaries across groups. For example, by including a discrete <code>color</code> variable (e.g., <code>cut</code>) with <code>geom_freqpoly()</code>, you get a frequency polygon for each level of that variable. This ability to quickly generate visual encodings of statistical summaries across an arbitrary number of groups works for basically any geom (e.g. <code>geom_boxplot()</code>, <code>ge