Determine if a tree is bifurcating.

Description

This function determines if a tree is strictly bifurcating, i.e. each node has exactly 2 children. If a tree has monofurcations or multifurcations, this function returns FALSE.

Usage

is_bifurcating(tree)

Arguments

Details

This functions accepts rooted and unrooted trees, that may include monofurcations, bifurcations and multifurcations.

Value

A logical, indicating whether the input tree is strictly bifurcating.

Author(s)

Stilianos Louca

Examples

# generate random tree
Ntips = 10
tree  = generate_random_tree(list(birth_rate_intercept=1),max_tips=Ntips)$tree

# check if the tree is bifurcating (as expected)
is_bifurcating(tree)