Metrics are a preliminary implementation of simple graph/tree statistics. They
can be accessed through the Node > Metrics menu on any class
node in Protege. They are currently not supported for other domains, although
our intent is to provide them soon. The image below shows such an operation
performed on a typical class in the Newspaper example.
- # Inheritors - the number of sub-classes of that class.
- #Instances - the number of instances of that class.
- Tree Depth - with that node as root, the maximum height of
the tree descending from it. - Rank - for leaf nodes, gives the number of instances; otherwise
it gives the number of instances + the subclasses + the max rank from the
subnodes.