I'm really glad to see this topic come up. Area-proportional Venn diagrams are a phantastic way to visualize agreement. For the 2-rater scenario this is straightforward; here are two examples from my own work that were done in R. (I'm far too embarrassed to enclose the code).
http://myweb.dal.ca/partes/venn_example.jpg For 3 (or more!) variables, it becomes tricky, but Chow and Ruskey have solved this recently (see link below). http://www.cs.uvic.ca/~ruskey/Publications/VennArea/VennArea.html I think there is even a Java applet for demonstration purposes. It would be phantastic to have a good R-implementation of this... Unfortunately my own skills are several log units below what's required. I have written to Chow and Ruskey before but unfortunately not heard anything. Anyone up for the job?? Best wishes Paul Nina Hubner wrote: > > Hello, > > > > I am a total beginner with “R” and found a package “venn” to > create a venn diagram. > > The problem is, I cannot create the vectors required for the diagram. > > The manual say: > "R> venn(accession, libname, main = "All samples") > where accession was a vector containing the codes identifying > the RNA sequences, and libname was a vector containing the codes > identifying the tissue sample (library)." > > > The structure of my data is as follows: > > > > R> structure(list(cyto = c("A", “B”, “C”, “D”), nuc = c(“A”, “B”, “E”, > “”), > chrom = c(“B”, “F”, “”, “”)),.Names = c("cyto", "Nuc", "chrom")) > > > accession should be "A", "B",.... and libname schould be "cyto", > "nuc" and "chrom" as I understand it... > > > Could you help me? > > > > Sorry, that might be a very simple question, but I am a total beginner > as said before! The question has already been asked, but unfortunately > there was no answer... > > > > Thank you a lot, > > Nina Hubner > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > -- View this message in context: http://www.nabble.com/Venn-diagram-tf3846402.html#a10897668 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
