evanverse (version 0.3.7)

plot_venn: Draw Venn Diagrams (2-4 sets, classic or gradient style)

Description

A flexible and unified Venn diagram plotting function supporting both ggvenn and ggVennDiagram. Automatically handles naming, de-duplication, and visualization.

Usage

plot_venn(
  set1,
  set2,
  set3 = NULL,
  set4 = NULL,
  category.names = NULL,
  fill = c("skyblue", "pink", "lightgreen", "lightyellow"),
  label = "count",
  label_geom = "label",
  label_alpha = 0,
  fill_alpha = 0.5,
  label_size = 4,
  label_color = "black",
  set_color = "black",
  set_size = 5,
  edge_lty = "solid",
  edge_size = 0.8,
  title = "My Venn Diagram",
  title_size = 14,
  title_color = "#F06292",
  legend.position = "none",
  method = c("classic", "gradient"),
  digits = 1,
  label_sep = ",",
  show_outside = "auto",
  auto_scale = FALSE,
  palette = "Spectral",
  direction = 1,
  preview = TRUE,
  return_sets = FALSE,
  ...
)

Value

A ggplot object (and optionally a list of processed sets if return_sets = TRUE).

Arguments

set1, set2, set3, set4

Input vectors. At least two sets are required.

category.names

Optional vector of set names. If NULL, variable names are used.

fill

Fill colors (for method = "classic").

label

Label type: "count", "percent", "both", or "none".

label_geom

Label geometry for ggVennDiagram: "label" or "text".

label_alpha

Background transparency for labels (only for gradient).

fill_alpha

Transparency for filled regions (only for classic).

label_size

Size of region labels.

label_color

Color of region labels.

set_color

Color of set labels and borders.

set_size

Font size for set names.

edge_lty

Line type for borders.

edge_size

Border thickness.

title

Plot title.

title_size

Title font size.

title_color

Title font color.

legend.position

Legend position. Default: "none".

method

Drawing method: "classic" (ggvenn) or "gradient" (ggVennDiagram).

digits

Decimal places for percentages (classic only).

label_sep

Separator for overlapping elements (classic only).

show_outside

Show outside elements (classic only).

auto_scale

Whether to auto-scale layout (classic only).

palette

Gradient palette name (gradient only).

direction

Palette direction (gradient only).

preview

Whether to print the plot to screen.

return_sets

If TRUE, returns a list of de-duplicated input sets.

...

Additional arguments passed to the underlying plot function.

Examples

set.seed(123)
g1 <- sample(letters, 15)
g2 <- sample(letters, 10)
g3 <- sample(letters, 12)

# Classic 3-set Venn
plot_venn(g1, g2, g3, method = "classic", title = "Classic Venn")

# Gradient 2-set Venn
plot_venn(g1, g2, method = "gradient", title = "Gradient Venn")

# Return sets for downstream use
out <- plot_venn(g1, g2, return_sets = TRUE)
names(out)