The ggcorrplot package can be used to visualize easily a correlation matrix using ggplot2. It provides a solution for reordering the correlation matrix and displays the significance level on the ...
library(ggvenn) a <- list(A = 1:5, B = 4:9, C = 3:7, D = 1:20, E = 15:19) ggvenn(a, c("A", "B")) # draw two-set venn ggvenn(a, c("A", "B", "C")) # draw three-set venn ...