Venn diagram for 2-4 sets — plot

Draws a Venn diagram using either ggvenn (classic) or ggVennDiagram (gradient). Both packages must be installed (they are in Suggests).

Usage

plot_venn(
  set1,
  set2,
  set3 = NULL,
  set4 = NULL,
  set_names = NULL,
  method = c("classic", "gradient"),
  label = c("count", "percent", "both", "none"),
  palette = NULL,
  return_sets = FALSE
)

Arguments

set1, set2: Required input vectors (at least two sets).
set3, set4: Optional additional sets. Default: NULL.
set_names: Character vector of set labels. If NULL, uses the variable names of the inputs. Default: NULL.
method: Drawing method: "classic" (ggvenn) or "gradient" (ggVennDiagram). Default: "classic".
label: Label type: "count", "percent", "both", or "none". Default: "count".
palette: For "classic": character vector of fill colors, recycled to match the number of sets. For "gradient": a single RColorBrewer palette name passed to scale_fill_distiller(). If NULL, defaults are used. Default: NULL.
return_sets: Logical. If TRUE, returns list(plot, sets) instead of just the plot. Default: FALSE.

Value

A ggplot object, or a named list with elements plot and sets if return_sets = TRUE.

Examples

if (requireNamespace("ggvenn", quietly = TRUE)) {
  set.seed(42)
  plot_venn(sample(letters, 15), sample(letters, 12), sample(letters, 10))
}