Add vbracket legend to ggplot
# S3 method for vbracket_legend
ggplot_add(object, plot, ...)A ggplot object (classes "gg" and "ggplot") with the vbracket legend incorporated.
The plot's default legend is typically suppressed and a custom vbracket legend showing statistical comparison brackets is added.
A vbracket_legend object
A ggplot object
Additional arguments (not used)