symmetry op• 資料種類:matrix → table
• 呼叫: import fullseye as fs; fs.ledger.graph_swap_symmetry(adj, pairs)(要直接呼叫實作,import graphinv; graphinv.graph_swap_symmetry(adj, pairs);從台帳取用則 opsgraph.get("graph_swap_symmetry"))
> 該運算子的說明尚無譯文,以下照原文給出。
How much of the wiring survives exchanging node pairs (a left/right test).
pairs is a sequence of (i, j) index pairs to exchange (each node in at most one pair). The wiring is re-indexed by the exchange and compared with the original:
jaccard = |E ∩ E'| / |E ∪ E'| over directed edges (self-loops removed). Returns a dict with jaccard, shared, union, edges, and n_pairs.
Identities: the identity pairing (or an empty pairs) gives exactly 1.0; applying the exchange twice recovers the original matrix exactly. For the C. elegans hermaphrodite chemical connectome with its 98 named left/right pairs the measured value is 0.470 — half the wiring is not mirrored.
Raises ValueError: as graph_degree_summary; an index out of range; a node appearing in two pairs; a pair of a node with itself.
• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。
• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。
• 演算法的正典(作者、年份)與用途見上面的族使用指南。
• graphinv_three_phyla — py -3.11 examples/graphinv_three_phyla.py
• poc_connectome_lr_symmetry — py -3.11 examples/poc_connectome_lr_symmetry.py
table 作為輸入)graph_edge_consensus · graph_core_persistence · tree_morphometry · tree_sholl · tree_run_length
symmetry)—
*Provenance: graphinv.py — GRAPH 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.