title: Deleting nodes with tie=1 in a large NetworkX graph
body: <p>I have made large graph with NetworkX with about 20,000 nodes. I would like to delete nodes with only one tie (or zero ties) to try to reduce the clutter. Since it is a very large graph I do not know the nodes by name or ID that have tie=1 or 0.</p>
  
  <p>Does anyone know how to delete these nodes without specifying the node ID or name?</p>
  
  <p><img src="https://i.stack.imgur.com/JjVFL.png" alt="enter image description here"></p>