So I have a table formatted like this: http://www.sharecsv.com/s/a12e5ce610261b9f0d315b56d7a88b19/testdata.csv https://i.stack.imgur.com/Jwfzm.jpg
My goal is to have each Auth (Auth1 to 10) representing a node, and if they are in the same row/group it means they are connected and therefore have a link, so maybe have a matrix of every Auth by every Auth, with the name of times they appear together adds 1 to their matrix, if that makes sense.
I've managed to pull out the list of authors but I have no idea how to calculate how many times they appear together to form this matrix, can anyone help?