To get meaningful clusters, select nodes that are highly connected.
- With one or more linked nodes selected, right-click (Ctrl-click on the Mac) and select Arrange Linked > :
- Cluster Around (Filled Circle)
- Cluster Around (Distributed)
(Creates a hierarchy from the selected node. (i.e. use to help define what a central concept is)).
- Gravity (Filled Circle)
(Begin by selecting all nodes (Ctrl-A, Cmd-A on the Mac)). The nodes with the most connections move toward the center and those with fewer connections move to the periphery.)
You can also arrange linked nodes from the menu choice Format > Arrange Linked >