tree_morphometry — GRAPH tree op

• データ種: table → table

• 呼び出し: import fullseye as fs; fs.ledger.tree_morphometry(tree) (実装を直接呼ぶなら import treemorph; treemorph.tree_morphometry(tree)、台帳から引くなら opsgraph.get("tree_morphometry"))

使い方

Counts and lengths of a tree table (from tree_from_swc).

Returns nodes, edges, bifurcations (nodes with two or more children), tips (nodes with no child), cable_length (sum of segment lengths), max_path_length (longest root-to-node path along the tree) and max_radial (largest straight distance from the root).

Identities (checked inside, fail-closed): nodes == edges + 1, and tips == 1 + sum(children - 1) over the nodes that have children — tips are counted from the child counts directly, the right side from the branching nodes, so a bug in either count breaks the equality. A root with one child is not a tip.

Raises ValueError: not a tree table (see tree_from_swc).

参考(サンプルデータ・文献)

• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。

• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。

• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• poc_swc_tree_truth — py -3.11 examples/poc_swc_tree_truth.py

• poc_worm_neurites_grow — py -3.11 examples/poc_worm_neurites_grow.py

• poc_worm_synapses_vs_neurites — py -3.11 examples/poc_worm_synapses_vs_neurites.py

型が繋がる次の op(table を入力に取れる)

graph_edge_consensus · graph_core_persistence · tree_sholl · tree_run_length

同カテゴリ(tree)

tree_from_swc · tree_sholl · tree_run_length

*Provenance: treemorph.py — GRAPH operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.