venn3 {dga}

Three List Venn Diagram

Description

A function that plots a venn diagram of 3 lists. One point is plotted in each region for each record that falls into the corresponding list overlap.

Usage

venn3(
  overlap.counts,
  main = NULL,
  num.test.points = 1e+05,
  p.cex = 0.75,
  write_numbers = FALSE,
  t.cex = 1.25,
  cex.main = 1
)

Arguments

overlap.counts

A vector of length 2^3 that gives the number of records in each overlap in lexicographic order, i.e. 001, 010, 011, 100, etc.

main

the title of the graph

num.test.points

how many test points to generate as potentials to be plotted in the circles.

p.cex

the size of the points to be plotted

write_numbers

indicates whether to print the number of points in each region.

t.cex

the size of the text to write the numbers.

cex.main

the size of the title

Value

a 3-way venn diagram with points inside of each segment representing the number of records on each list overlap.

Author(s)

Kristian Lum [e-mail]

Examples

overlap.counts <- rpois(8, 30)
venn3(overlap.counts, main = "example diagram")