This function returns the minimum distance of each node from one of the leaves of the graph
Usage
distances.from.leaves(g)
Arguments
g
a graph of class graphNEL. It represents the hierarchy of the classes
Value
a named vector. The names are the names of the nodes of the graph g, and their values represent the distance from the leaves.
A value equal to 0 is assigned to the leaves, 1 to nodes with distance 1 from a leaf and so on