R语言绘制韦恩图

导语
韦恩图用于展示在不同的事物群组（集合）之间的数学或逻辑联系，尤其适合用来表示集合（或）类之间的“大致关系”，它也常常被用来帮助推导（或理解推导过程）关于集合运算（或类运算）的一些规律。

下面介绍运用ggVennDiagram包绘制简单美观的韦恩图。

install.packages("ggVennDiagram")
library(ggVennDiagram)
venn <- read.csv("venn_data.csv",header=T)
venn_list <- list(BL=venn[,1],RB=venn[,2],RL=venn[,3])
ggVennDiagram(venn_list,edge_size=1,set_size = 6,size=5,label_alpha=0,label_size=4,category.names = c("BL","RB","RL")) + scale_fill_gradient(low="white",high = "red")

#参数
Arguments

category.names
#default is names(x)

show_intersect
#if TRUE the text can be visualized by `plotly`

set_color
#color of set labels ("black")

set_size
#size of set labels (NA)

label
#format of region labels, select one from c("count","percent","both","none")

label_alpha
#set 0 to remove the background of region labels

label_geom
#layer of region labels, choose from c("label", "text")

label_color
#color of region labels ("black")

label_size
#size of region labels (NA)

label_percent_digit
#number of digits when formatting percent label (0)

label_txtWidth
#width of text used in showing intersect members, will be ignored unless show_intersection is TRUE (40)

edge_lty
#line type of set edges ("solid")

edge_size
#line width of set edges (1)