tag_facet_outside: tag_facet_outside

In egg: Extensions for 'ggplot2': Custom Geom, Custom Themes, Plot Alignment, Labelled Panels, Symmetric Scales, and Fixed Panel Size

Description

Adds a dummy text layer to a ggplot to label facets and sets facet strips to blank. This is the typical formatting for some journals that consider facets as subfigures and want to minimise margins around figures.

Usage

tag_facet_outside(p, open = c("(", ""), close = c(")", "."),
  tag_fun_top = function(i) letters[i],
  tag_fun_right = utils::as.roman, x = c(0, 0), y = c(0.5, 1),
  hjust = c(0, 0), vjust = c(0.5, 1), fontface = c(2, 2),
  family = "", draw = TRUE, ...)

Arguments

p	ggplot
open	opening character, default: (
close	closing character, default: )
tag_fun_top	labelling function
tag_fun_right	labelling function
x	x position within cell
y	y position within cell
hjust	hjust
vjust	vjust
fontface	fontface
family	font family
draw	logical: draw the resulting gtable
...	further arguments passed to geom_text layer

Value

plot with facet strips removed and replaced by in-panel tags

Examples

library(ggplot2)
d = data.frame(
  x = 1:90,
  y = rnorm(90),
  red = rep(letters[1:3], 30),
  blue = c(rep(1, 30), rep(2, 30), rep(3, 30)))

p <- ggplot(d) +
  geom_point(aes(x = x, y = y)) +
  facet_grid(red ~ blue)
  
tag_facet_outside(p)

egg documentation built on July 13, 2019, 9:03 a.m.