skbio.tree.TreeNode.unpack¶
- TreeNode.unpack()[source]¶
Unpack an internal node in place.
State: Experimental as of 0.5.3.
Notes
This function sequentially: 1) elongates child nodes by branch length of self (omit if there is no branch length), 2) removes self from parent node, and 3) grafts child nodes to parent node.
- Raises:
ValueError – if input node is root or tip
See also
Examples
>>> from skbio import TreeNode >>> tree = TreeNode.read(['((c:2.0,d:3.0)a:1.0,(e:2.0,f:1.0)b:2.0);']) >>> tree.find('b').unpack() >>> print(tree) ((c:2.0,d:3.0)a:1.0,e:4.0,f:3.0);