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")


[Package dga version 2.0.1 Index]