skbio.core.tree.TreeNode.distance

TreeNode.distance(other)[source]

Return the distance between self and other

This method can be used to compute the distances between two tips, however, it is not optimized for computing pairwise tip distances.

Parameters:

other : TreeNode

The node to compute a distance to

Returns:

float

The distance between two nodes

Raises:

NoLengthError

A NoLengthError will be raised if a node without length is encountered

Examples

>>> from skbio.core.tree import TreeNode
>>> tree = TreeNode.from_newick("((a:1,b:2)c:3,(d:4,e:5)f:6)root;")
>>> tip_a = tree.find('a')
>>> tip_d = tree.find('d')
>>> tip_a.distance(tip_d)
14.0