NodeXL and Food Safety! Using graphs to track peanut tainted products

Coordinator
Feb 2, 2009 at 9:32 PM
Edited Mar 1, 2009 at 5:03 PM
A nice use of NodeXL can be found over at Development in a Blink where a great image of the related producer and products tainted by poisoned peanuts. 
Feb 28, 2009 at 10:42 PM
Nice! Could you please post the link to the item?  I couldn't find it on the blog, presumably because I was searching on the wrong keyword.
Coordinator
Mar 1, 2009 at 5:02 PM
Here is the direct link to the tainted peanut network map:
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Marc

Jun 5, 2009 at 4:49 PM

New user.  I have not been able to generate this 3-level map with NodeXL.  How do I get to third level?

Jun 5, 2009 at 5:16 PM

In NodeXL, you usually specify a graph by simply entering the graph's edge list into the Edges worksheet.  Each edge is specified by the two vertices it connects.  So if you have vertex A, which connects to three vertices, each of which connects to two additional vertices (that's nine edges total), the Edges worksheet would look like this:

Vertex 1  Vertex 2
A         A-1
A         A-2
A         A-3
A-1       A-1-1
A-1       A-1-2
A-2       A-2-1
A-2       A-2-2
A-3       A-3-1
A-3       A-3-2

If that doesn't answer your question, let me know.

-- Tony