ggplot2 is one of the most popular R packages – for good reason. It’s a data visualization framework that logically associates features of your data with elements of the plot. Once you’ve learned the basic ggplot2 syntax for making a plot, you can adapt it to make new visualizations with different plot types easily. ggplot2 makes plotting multiple data series with different lines or marker types straightforward, and it lets you create multiple plots for different groups in your data with one command.
Kelsey Rydland
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