vennvis: Visualise the relation between two variables as circles

In vankesteren/vennvis: Venn Visualisation of Variable Variances

Description

Using a venn diagram where the overlap indicates the covariance between two variables and the area of the circles indicates the variance of each.

Usage

vennvis(x, y, z, scale = FALSE, plot = TRUE, plotOpts)

Arguments

x	a base variable or a matrix/data frame with 2/3 variables
y	a comparison variable
z	an optional third variable
scale	whether to scale the variables
plot	whether to plot, default TRUE
plotOpts	named list of custom plot options; see details

Details

There are several custom options that can be added to the plotOpts argument:

• precision (400) - the number of points to use to draw the circles

• axes (FALSE) - whether to draw the (arbitrary) axes

• triangle (FALSE) - only available with 3 vars: whether to draw a triangle between the centers of the circles

Examples

set.seed(147289)
x <- rnorm(100)
y <- 0.5*x+rnorm(100, 0.25)
vennvis(x, y)

z <- 0.3*x+0.4*y+rnorm(100, 0.15)
vennvis(x, y, z)

vankesteren/vennvis documentation built on May 31, 2019, 8:50 p.m.