I have been searching to figure out how a Venn diagram can be plotted with displaying internal labels (overlap items) programmatically. There is no error in the code, but still I cannot figure out how to fix this.

Venn diagram

  require(VennDiagram)

  AA <- c("hi","foo", "bar","yep","woo","hoo")
  BB <- c("baa","yep", "woo","yes")
  CC <- c("yes","foo","hi","woo", "huh")

  x <- list(AA=AA , BB=BB , CC=CC)


  v0 <- venn.diagram( x, filename=NULL)

  grid.draw(v0)

  overlaps <- calculate.overlap(x)
  #overlaps <- rev(overlaps)


  for (i in 1:length(overlaps)){
    v0[[i+6]]$label <- paste(overlaps[[i]], collapse = "\n") # labels start at position 7 in the list for Venn's with 3 circles
  }


  grid.newpage()
  grid.draw(v0)