[R] How to obtain the unique communities when plotting VENNs?

[Jim Lemon]

Hi Krissey,
I think what you need is the object (probably a matrix or data frame)
that contains the present/absent codes for all of the species
recorded. It looks to me as though the venn.diagram function wants a
list with the indices of "present" codes for each set, and calculates
the intersections from that. If you have that list, you can work
backward to generate the initial present/absent matrix for all
species. You will have to know the order of the rows in the initial
matrix to identify which species is which.

Jim


On Fri, Aug 14, 2015 at 1:05 AM, Krissey <kristin.kaiser at web.de> wrote:
> Thanks a lot John - I will set up a new post and hopefully do better :)
>
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