~!PDF ~^EPub ggplot2: Elegant Graphics for Data

This new edition to the classic book by ggplot2 creator Hadley Wickham highlights compatibility with knitr and RStudio. ggplot2 is a data visualization package for R that helps users create data graphics, including those that are multi-layered, with ease. With ggplot2, it's easy to:<br /><br /><br />produce handsome, publication-quality plots with automatic legends created from the plot specification<br />superimpose multiple layers (points, lines, maps, tiles, box plots) from different data sources with automatically adjusted common scales<br />add customizable smoothers that use powerful modeling capabilities of R, such as loess, linear models, generalized additive models, and robust regression<br />save any ggplot2 plot (or part thereof) for later modification or reuse<br />create custom themes that capture in-house or journal style requirements and that can easily be applied to multiple plots<br />approach a graph from a visual perspective, thinking about how each component of the