# skbio.tree.TreeNode.observed_node_counts¶

TreeNode.observed_node_counts(tip_counts)[source]

Returns counts of node observations from counts of tip observations

State: Experimental as of 0.4.1.

Parameters

tip_counts (dict of ints) – Counts of observations of tips. Keys correspond to tip names in self, and counts are unsigned ints.

Returns

Counts of observations of nodes. Keys correspond to node names (internal nodes or tips), and counts are unsigned ints.

Return type

dict

Raises
• ValueError – If a count less than one is observed.

• MissingNodeError – If a count is provided for a tip not in the tree, or for an internal node.