TreeNode.
lca
(tipnames)[source]¶Lowest common ancestor for a list of tips
State: Experimental as of 0.4.0.
Parameters: | tipnames (list of TreeNode or str) – The nodes of interest |
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Returns: | The lowest common ancestor of the passed in nodes |
Return type: | TreeNode |
Raises: | ValueError – If no tips could be found in the tree, or if not all tips were
found. |
Examples
>>> from skbio import TreeNode
>>> tree = TreeNode.read(["((a,b)c,(d,e)f)root;"])
>>> nodes = [tree.find('a'), tree.find('b')]
>>> lca = tree.lowest_common_ancestor(nodes)
>>> print(lca.name)
c
>>> nodes = [tree.find('a'), tree.find('e')]
>>> lca = tree.lca(nodes) # lca is an alias for convience
>>> print(lca.name)
root