skbio.tree.TreeNode.distance#

TreeNode.distance(other)[source]#

Calculate the distance between self and another node.

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

Parameters:

otherTreeNode: The node to compute a distance to.

Returns:

float: The distance between two nodes.

Raises:

NoLengthError: If a node without branch length is encountered.

See also

tip_tip_distances
accumulate_to_ancestor
compare_tip_distances
get_max_distance

Examples

>>> from skbio import TreeNode
>>> tree = TreeNode.read(["((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