An Association Chart, and the Arithmetic Underneath It LINK
A chart drawn by hand shows what you already believed. The value is in the measures that find the person holding two groups together when nobody can see it.
The links
A CSV with two columns saying who is connected to whom. Call data, a visitor log, a list of directorships, co-defendants, people seen together — anything that is a list of pairs. It is read in this tab and goes nowhere.
Which column is which
The network
The chart
What the numbers say
Everybody, by betweenness
How two of them are connected
The shortest chain between any two names in the file, and whether there is more than one chain that short.
Take it with you
Questions people ask about LINK