venn4 {dga}

R Documentation

Four List Venn Diagram

Description

A function that plots a venn diagram of 4 lists. One point is plotted in each region for each record that falls into the corresponding list overlap.

Usage

venn4(
  overlap.counts,
  main = NULL,
  num.test.points = 1e+05,
  p.cex = 0.75,
  cex.main = 1
)

Arguments

overlap.counts	A vector of length 2^4 that gives the number of records in each overlap in lexicographic order, i.e. 0000, 0001, 0010, 0011, 0100, 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
cex.main	the size of the title

Value

A venn diagram of the list overlap structure for four lists. Each region of the plot contains points representing each record in that list intersection.

Author(s)

Kristian Lum kl@hrdag.org

Examples

overlap.counts <- rpois(16, 50)
venn4(overlap.counts, main = "example diagram")

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