vennItem: Create Venn Diagram with Items

Description

Draws a 2- or 3-set Venn diagram with items listed in regions.

Usage

vennItem(
  sets,
  ncol_items = 1,
  max_items_per_region = Inf,
  fill_alpha = 0.25,
  outline_size = 0.8,
  palette = NULL,
  text_size = 3.5,
  font_family = "mono",
  title = NULL,
  legend = "none",
  sort_items = TRUE,
  show_set_labels = TRUE,
  set_label_size = text_size * 1.5,
  set_label_family = font_family,
  set_label_nudge = 0.25,
  set_label_angles = NULL
)

Value

A ggplot object.

Arguments

sets: Named list of character vectors.
ncol_items: Number of columns for items drawn within each section.
max_items_per_region: Show top n items only. Set to 0 for classic set size Venn.
fill_alpha: Fill opacity.
outline_size: Circle stroke size.
palette: Vector of custom fill colours.
text_size: Size of item text.
font_family: Font of item text, monospace recommended.
title: Plot title.
legend: Show fill legend.
sort_items: Sort items alphabetically within sections.
show_set_labels: Label circles with set names.
set_label_size: Size of set names.
set_label_family: Font of set names.
set_label_nudge: Distance of set names from circle.
set_label_angles: Angle of set name from center of plot.

Examples

Run this code

sets <- list(A = c("apple","banana"), B = c("banana","kiwi"),
 C = c("banana","kiwi","apple","pear"))
vennItem(sets)
big_sets <- list(A = c("apple","banana","durian","lychee",
"grapes","pear","melon"),
B = c("banana","kiwi","satsuma","orange","lemon","lime"),
C = c("banana","kiwi","apple","pear","coconut"))
vennItem(big_sets, ncol_items = 2)

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