title: Identify clusters in SOM (Self Organizing Map)
body: <p>Once I have collected and organized data in a SOM how do I identify clusters?</p>
  
  <p>(Items are aggregated and clustered using many traits - upwards of 10)</p>
  
  <p>Specifically I want to find the 'center' of the cluster - therefor giving me the 'center' node(s). </p>