The Abouheif distance is the product of the number of direct descendants of each node in the path between two nodes.
It is a measure of the number of transmission events between two nodes.
Usage
abouheif(tree)
Value
A square, symmetric matrix of Abouheif distances between nodes.
Arguments
tree
A data frame representing a transmission tree, with the first column containing the infector IDs and the second the infectee IDs.