# patchwork v1.0.0

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## The Composer of Plots

The 'ggplot2' package provides a strong API for sequentially building up a plot, but does not concern itself with composition of multiple plots. 'patchwork' is a package that expands the API to allow for arbitrarily complex composition of plots by, among others, providing mathematical operators for combining multiple plots. Other packages that try to address this need (but with a different approach) are 'gridExtra' and 'cowplot'.

# patchwork

The goal of patchwork is to make it ridiculously simple to combine separate ggplots into the same graphic. As such it tries to solve the same problem as gridExtra::grid.arrange() and cowplot::plot_grid but using an API that incites exploration and iteration, and scales to arbitrily complex layouts.

## Installation

You can install patchwork from github with:

# install.packages("devtools")
devtools::install_github("thomasp85/patchwork")


## Basic example

The usage of patchwork is simple: just add plots together!

library(ggplot2)
library(patchwork)

p1 <- ggplot(mtcars) + geom_point(aes(mpg, disp))
p2 <- ggplot(mtcars) + geom_boxplot(aes(gear, disp, group = gear))

p1 + p2


patchwork provides rich support for arbitrarily complex layouts with full alignment. As an example, check out this very readable code for nesting three plots on top of a third:

p3 <- ggplot(mtcars) + geom_smooth(aes(disp, qsec))
p4 <- ggplot(mtcars) + geom_bar(aes(carb))

(p1 | p2 | p3) /
p4


patchwork can do so much more. Check out the guides for learning everything there is to know about all the different features:

## Code of Conduct

Please note that the patchwork project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.

## Functions in patchwork

 Name Description patchGrob Get a grob describing the content of a patch object plot_arithmetic Plot arithmetic wrap_plots Wrap plots into a patchwork guide_area Add an area to hold collected guides patchworkGrob Convert a patchwork to a gtable plot_spacer Add a completely blank area wrap_elements Wrap arbitrary graphics in a patchwork-compliant patch wrap_ggplot_grob Make a gtable created from a ggplot object patchwork compliant area Specify a plotting area in a layout plot_layout Define the grid to compose plots in multipage_align Align plots across multiple pages patchwork-package patchwork: The Composer of Plots plot_annotation Annotate the final patchwork No Results!