max_ladder {treestats}

Maximum ladder index

Description

Calculate the maximum ladder index, from the phyloTop package. Higher values indicate more unbalanced trees. To calculate the maximum ladder index, first all potential ladders in the tree are calculated. A ladder is defined as a sequence of nodes where one of the daughter branches is a terminal branch, resulting in a 'ladder' like pattern. The maximum ladder index then represents the longest ladder found among all observed ladders in the tree.

Usage

max_ladder(input_obj)

Arguments

input_obj

phylo object or ltable

Value

longest ladder in the tree