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ggplot2 Essentials by Donato Teutonico

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Lattice and Trellis plots

Along with with graphics, the base R installation also includes the lattice package. This package implements a family of techniques known as Trellis graphics, proposed by William Cleveland to visualize complex datasets with multiple variables. The objective of those design principles was to ensure the accurate and faithful communication of data information. These principles are embedded into the package and are already evident in the default plot design settings. One interesting feature of Trellis plots is the option of multipanel conditioning, which creates multiple plots by splitting the data on the basis of one variable. A similar option is also available in ggplot2, but in that case, it is called faceting.

In lattice ...

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