plot_venn2d: Plot Venn diagram for 2-dimensional data.

In danielmarcelino/plotVenn: Plot and add custom coloring to Venn diagrams for 2-dimensional, 3-dimensional and 4-dimensional data.

Description

Given a vector of 3 values, which describe 2-dimensional data, it plots a Venn diagram, i.e. 'crossing circles'. The user can specify values, labels for each circle-group and colors.

Usage

plot_venn2d(
  x,
  labels = c("A", "B"),
  Colors = c("red", "yellow", "green"),
  Title = NULL,
  num.size = 20,
  shrink = 1,
  rot = 0,
  radius = c(1, 1),
  resizePlot = 1,
  reverseLabelOrdering = TRUE,
  printvals = TRUE
)

Arguments

x	a numeric vector of length 3, where first value corresponds to only group 1, second is only group 2, and third is a crossover of the two groups. Can also be a character vector of length 3.
labels	a character vector of length 2, providing names for the 2 groups/dimensions.
Colors	a vector of color names for the backgrounds of each part of the diagram.
Title	optional: a character vector of length 1, specifying title for the whole plot.
num.size	sets the font size for the numbers inside the Venn diagram.
shrink	a numeric value, specifying zooming effect of the plot, defaults to 1.
rot	a numeric value, specifying the number of degrees to rotate the graph.
radius	a 2-item numeric vector containing the relative sizes of the two circles
resizePlot	a numeric value indicating the amount to increase or decrease the size of the plot
reverseLabelOrdering	boolean value indicating whether labels are in the normal or reverse ordering. default=TRUE for backward compatability with the original version
printvals	boolean value indicating whether to print the values of the groups. default=TRUE

Examples

plot.new()
plot_venn2d(rep("",3), radius=c(1.25,1.25), labels=c("Y","X"), Colors=c("yellow","orange","pink"))
grid.text(expression(paste(X,intersect(Y))),0.5,0.5)
grid.text("X",0.25,0.5)
grid.text("Y",0.75,0.5)

# rotated plot
y <- c(37,29,6)
labels <- c("A","B")
plot.new()
plot_venn2d(y, labels, Colors=rainbow(3), 
Title = "This is an example of a 2D Venn plot",
          radius=c(0.85, 1.0), rot=45)

danielmarcelino/plotVenn documentation built on March 28, 2020, 12:02 a.m.