venn_plot: Draw Venn diagrams

In TiagoOlivoto/metan: Multi Environment Trials Analysis

Draw Venn diagrams

Description

Produces ggplot2-based Venn plots for 2, 3 or 4 sets. A Venn diagram shows all possible logical relationships between several sets of data.

Usage

venn_plot(
  ...,
  names = NULL,
  show_elements = FALSE,
  split_labels = FALSE,
  split_each = 4,
  show_sets = FALSE,
  fill = ggplot_color(4),
  alpha = 0.5,
  stroke_color = "white",
  stroke_alpha = 1,
  stroke_size = 1,
  stroke_linetype = "solid",
  name_color = "black",
  name_size = 6,
  text_color = "black",
  text_size = 4,
  label_sep = ","
)

Arguments

...	A list or a comma-separated list of vectors in the same class. If vector contains duplicates they will be discarded. If the list doesn't have names the sets will be named as "set_1", "⁠Set_2"⁠, "Set_3" and so on. If vectors are given in ..., the set names will be named with the names of the objects provided.
names	By default, the names of the sets are set as the names of the objects in ... (names = NULL). Use names to override this default.
show_elements	Show set elements instead of count. Defaults to FALSE.
split_labels	Splits the element labels into new lines each split_each elements? Defaults to TRUE. This is useful to split labels into several lines when show_elements = TRUE is used.
split_each	The number of elements that will apper in each line when split_labels = TRUE is used.
show_sets	Show set names instead of count. Defaults to FALSE.
fill	Filling colors in circles. Defaults to the default ggplot2 color palette. A vector of length 1 will be recycled.
alpha	Transparency for filling circles. Defaults to 0.5.
stroke_color	Stroke color for drawing circles.
stroke_alpha	Transparency for drawing circles.
stroke_size	Stroke size for drawing circles.
stroke_linetype	Line type for drawing circles. Defaults to "solid".
name_color	Text color for set names. Defaults to "black".
name_size	Text size for set names.
text_color	Text color for intersect contents.
text_size	Text size for intersect contents.
label_sep	The separator for labs when show_elements = TRUE. Defaults to ",".

Value

A ggplot object.

Author(s)

Tiago Olivoto [e-mail]

Examples

library(metan)
(A <- letters[1:4])
(B <- letters[2:5])
(C <- letters[3:7])
(D <- letters[4:12])

# create a Venn plot
venn_plot(A, B)

# Three sets
venn_plot(A, B, C)

# Four sets
venn_plot(A, B, C, D)


# Use a list
dfs <- list(A = A, B = B, C = C, D = D)
venn_plot(dfs,
          show_elements = TRUE,
          fill = c("red", "blue", "green", "gray"),
          stroke_color = "black",
          alpha = 0.8,
          text_size = 8,
          label_sep = ".")

TiagoOlivoto/metan documentation built on Oct. 16, 2024, 8:22 p.m.