In guiastrennec/ggplus: Set of additional functions for ggplot2

knitr::opts_chunk$set(echo = TRUE,
                      fig.path = 'inst/img/', 
                      dev = 'jpeg', 
                      fig.ext = 'jpg', 
                      fig.show = 'hide',
                      fig.width = 8, 
                      fig.height = 5, 
                      dpi = 120)

ggplus

Warning

The development of ggplus is no longer supported, and the current package version is not compatible with ggplot (>=2.2.0). As an alternative I suggest that you use the very good facet_wrap_paginate() or facet_grid_paginate() from the ggforce package.

Rationale

To facilitate data exploration and model diagnostics by providing additional functions for ggplot2.

Installation

Install the ggplus package

devtools::install_github("guiastrennec/ggplus")

Note: Trying to install the package the install.packages('ggplus') (reserved for packages available on CRAN-like repositories) would result in the following error:

Warning in install.packages :
  package ‘ggplus’ is not available (for R version 3.3.1)

Load ggplus package

library(ggplus)

Package content

facet_multiple()

facet_multiple() is an extension of facet_wrap() in ggplot2 that allows to split panels over multiple pages.

Example

# Generate ggplot object
p <- ggplot(diamonds, aes(x = price, y = carat, color = cut)) +
geom_point(alpha = 0.5) +
labs(x     = 'Price (US dollars)',
     y     = 'Carat',
     title = 'A graph about diamonds')

# Plot on multiple pages (output plot to R/Rstudio)
facet_multiple(plot = p, 
               facets = 'color', 
               ncol = 2, 
               nrow = 2)

Result

First page

Last page

Save plots

To save the plots into files (pdf, png, etc.), facet_multiple should be called after a file connection has been oppened.

pdf('multiple_page_plot.pdf')
facet_multiple(plot = p, 
               facets = 'color', 
               ncol = 2, 
               nrow = 2)
dev.off()

facet_layout()

Is an extension of facet_wrap() in ggplot2 that prevent the layout from automatically filling in the entire page. This function can be used on its own but was designed to be used by facet_multiple().

theme_readable()

Theme intended to make ggplot2 more readable when used in presentation or papers by using black and bold font. In addition the contrast on the background and grid lines was reduced to focus the attention on the data itself.

Usage

p + theme_readable(base_size       = 12,
                   legend_position = "right")

print(p)

Result

Classic ggplot2 theme

theme_readable()

guiastrennec/ggplus documentation built on June 17, 2019, 1:04 p.m.