Venn diagrams are not very helpful for understanding natural join or inner join. Most Venn diagrams associated with joins on Stack Overflow are parroted worthless misrepresentations–even in cases where a Venn diagram could be useful. Here are some valid uses of Venn diagrams for SQL natural join: If you ignore column order, we can have … Read more
Here is a post which discusses Venn diagram from list of clusters and co-occurring factors. For easy solution use package venneuler: require(venneuler) v <- venneuler(c(A=450, B=1800, “A&B”=230)) plot(v) For more advanced and customized solutions check package VennDiagram. library(VennDiagram) venn.diagram(list(B = 1:1800, A = 1571:2020), fill = c(“lightblue”, “green”), alpha = c(0.5, 0.5), lwd =0, “venn_diagram.tiff”)
List of Venn Diagram packages: bvenn colorfulVennPlot eVenn VennDiagram Venneuler Vennerable: R-Forge, GitHub eulerr nVennR