GGally (version 2.2.1)

grab_legend: Grab the legend and print it as a plot

Description

Grab the legend and print it as a plot

Usage

grab_legend(p)
# S3 method for legend_guide_box
print(x, ..., plotNew = FALSE)

Arguments

p

ggplot2 plot object

x

legend object that has been grabbed from a ggplot2 object

...

ignored

plotNew

boolean to determine if the grid.newpage() command and a new blank rectangle should be printed

Examples

# Small function to display plots only if it's interactive
p_ <- GGally::print_if_interactive

library(ggplot2)
histPlot <-
  ggplot(iris, aes(Sepal.Length, fill = Species)) +
  geom_histogram(binwidth = 1 / 4)
(right <- histPlot)
(bottom <- histPlot + theme(legend.position = "bottom"))
(top <- histPlot + theme(legend.position = "top"))
(left <- histPlot + theme(legend.position = "left"))

p_(grab_legend(right))
p_(grab_legend(bottom))
p_(grab_legend(top))
p_(grab_legend(left))