Venn Diagram Proportional and Color Shading with Semi-Transparency

Venn diagram proportional and color shading with semi-transparency

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")

Area proportional 3-way Venn Diagram in R

You could always retrieve the plot parameters yourself and position the labels using arrows or something, but another option would be to use a legend instead of labels.

plot(VennDiag2, legend = TRUE)

Is is somewhat questionable whether there is much use for an Euler diagram at all here though.

How to create a Venn diagram with a transparent background in R?

This worked for me: (from Export plot in .png with transparent background.)

library(gplots)
png("~/venn_test.png", bg = 'transparent')
venn(list(A = letters[sample(26, 10)],
       B = letters[sample(26, 10)],
       C = letters[sample(26, 10)]))
dev.off()

Draw Venn diagram considering a specific treshold in a dataframe in R

Perhaps you mean to do something like this, leveraging the ggvenn package?. mutate(across()) here converts Cor1 and Cor2 columns into logical columns; these can be directly fed to ggvenn, and the overlap region is the number of rows where all (in this case "both") logical vectors are TRUE.

library(dplyr); library(ggvenn)

df1 %>%
  mutate(across(Cor1:Cor2, ~(.x>0.1))) %>% 
  ggvenn(c("Cor1", "Cor2"))

How can I change the background color of venn diagram using draw.pairwise.venn in R?

As suggested by @krfurlong ggvenn package can be used to plot Venn diagrams, and customize your plot according to requirements with the help of ggplot2.

you can install ggvenn by:

if (!require(devtools)) install.packages("devtools")
devtools::install_github("yanlinlin82/ggvenn")

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