r - Adding legend to venneuler -


i'd add legend venneuler ven diagram based upon generated colors in diagram. how can generate corresponding legend? possible plot values in ven?

list1 <- c("102","148","211","293","296","405") list2 <- c("102","148")  lists <- list(list1,list2) items <- sort(unique(unlist(lists))) mat <- matrix(rep(0,length(items)*length(lists)), ncol=3) colnames(mat) <- c("a","b") rownames(mat) <- items lapply(seq_along(lists), function(i){      mat[items %in% lists[[i]],i] <<- table(lists[[i]]) })  mat  library(venneuler)  v <- venneuler(mat > 0)  plot(v,main='r simple plot')


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