draw.quad.venn: Draw a Venn Diagram with Four Sets

In VennDiagram: Generate High-Resolution Venn and Euler Plots

Draw a Venn Diagram with Four Sets

Description

Creates a Venn diagram with four sets.

Usage

draw.quad.venn(area1, area2, area3, area4, n12, n13, n14, n23, n24,
    n34, n123, n124, n134, n234, n1234, category = rep("",
    4), lwd = rep(2, 4), lty = rep("solid", 4), col =
    rep("black", 4), fill = NULL, alpha = rep(0.5, 4),
    label.col = rep("black", 15), cex = rep(1, 15),
    fontface = rep("plain", 15), fontfamily = rep("serif",
    15), cat.pos = c(-15, 15, 0, 0), cat.dist = c(0.22,
    0.22, 0.11, 0.11), cat.col = rep("black", 4), cat.cex
    = rep(1, 4), cat.fontface = rep("plain", 4),
    cat.fontfamily = rep("serif", 4), cat.just =
    rep(list(c(0.5, 0.5)), 4), rotation.degree = 0,
    rotation.centre = c(0.5, 0.5), ind = TRUE, cex.prop =
    NULL, print.mode = "raw", sigdigs = 3, direct.area =
    FALSE, area.vector = 0, ...)

Arguments

area1	The size of the first set
area2	The size of the second set
area3	The size of the third set
area4	The size of the fourth set
n12	The size of the intersection between the first and the second set
n13	The size of the intersection between the first and the third set
n14	The size of the intersection between the first and the fourth set
n23	The size of the intersection between the second and the third set
n24	The size of the intersection between the second and the fourth set
n34	The size of the intersection between the third and the fourth set
n123	The size of the intersection between the first, second and third sets
n124	The size of the intersection between the first, second and fourth sets
n134	The size of the intersection between the first, third and fourth sets
n234	The size of the intersection between the second, third and fourth sets
n1234	The size of the intersection between all four sets
category	A vector (length 4) of strings giving the category names of the sets
lwd	A vector (length 4) of numbers giving the line width of the circles' circumferences
lty	A vector (length 4) giving the dash pattern of the circles' circumferences
col	A vector (length 4) giving the colours of the circles' circumferences
fill	A vector (length 4) giving the colours of the circles' areas
alpha	A vector (length 4) giving the alpha transparency of the circles' areas
label.col	A vector (length 15) giving the colours of the areas' labels
cex	A vector (length 15) giving the size of the areas' labels
fontface	A vector (length 15) giving the fontface of the areas' labels
fontfamily	A vector (length 15) giving the fontfamily of the areas' labels
cat.pos	A vector (length 4) giving the positions (in degrees) of the category names along the circles, with 0 (default) at 12 o'clock
cat.dist	A vector (length 4) giving the distances (in npc units) of the category names from the edges of the circles (can be negative)
cat.cex	A vector (length 4) giving the size of the category names
cat.col	A vector (length 4) giving the colours of the category names
cat.fontface	A vector (length 4) giving the fontface of the category names
cat.fontfamily	A vector (length 4) giving the fontfamily of the category names
cat.just	List of 4 vectors of length 2 indicating horizontal and vertical justification of each category name
rotation.degree	Number of degrees to rotate the entire diagram
rotation.centre	A vector (length 2) indicating (x,y) of the rotation centre
ind	Boolean indicating whether the function is to automatically draw the diagram before returning the gList object or not
cex.prop	A function or string used to rescale areas
print.mode	Can be either 'raw' or 'percent'. This is the format that the numbers will be printed in. Can pass in a vector with the second element being printed under the first
sigdigs	If one of the elements in print.mode is 'percent', then this is how many significant digits will be kept
direct.area	If this is equal to true, then the vector passed into area.vector will be directly assigned to the areas of the corresponding regions. Only use this if you know which positions in the vector correspond to which regions in the diagram
area.vector	An argument to be used when direct.area is true. These are the areas of the corresponding regions in the Venn Diagram
...	Additional arguments to be passed, including margin, which indicates amount of whitespace around the final diagram in npc units

Details

The function defaults to placing the ellipses so that area1 corresponds to lower left, area2 corresponds to lower right, area3 corresponds to middle left and area4 corresponds to middle right. Refer to the example below to see how the 31 partial areas are ordered. Arguments with length of 15 (label.col, cex, fontface, fontfamily) will follow the order in the example.

Value

Returns an object of class gList containing the grid objects that make up the diagram. Also displays the diagram in a graphical device unless specified with ind = FALSE. Grid::grid.draw can be used to draw the gList object in a graphical device.

Author(s)

Hanbo Chen

Examples

# Reference four-set diagram
venn.plot <- draw.quad.venn(
	area1 = 72,
	area2 = 86,
	area3 = 50,
	area4 = 52,
	n12 = 44,
	n13 = 27,
	n14 = 32,
	n23 = 38,
	n24 = 32,
	n34 = 20,
	n123 = 18,
	n124 = 17,
	n134 = 11,
	n234 = 13,
	n1234 = 6,
	category = c("First", "Second", "Third", "Fourth"),
	fill = c("orange", "red", "green", "blue"),
	lty = "dashed",
	cex = 2,
	cat.cex = 2,
	cat.col = c("orange", "red", "green", "blue")
	);

# Writing to file
tiff(
    filename = tempfile(
        pattern = 'Quad_Venn_diagram',
        fileext = '.tiff'
        ), 
    compression = "lzw"
    );
    
grid.draw(venn.plot);
dev.off();

VennDiagram documentation built on April 13, 2022, 1:06 a.m.