From abfe0e16498282a8066c2ec565b507eff3dbab93 Mon Sep 17 00:00:00 2001
From: wassname <1103714+wassname@users.noreply.github.com>
Date: Thu, 25 Jun 2026 18:53:11 +0800
Subject: [PATCH] remove dead shuffle_dimensions negative-control (unwired
 accretion)

Co-Authored-By: Claudypoo <288921227+claudypoo@users.noreply.github.com>
---
 src/tinymfv/instrument.py | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/src/tinymfv/instrument.py b/src/tinymfv/instrument.py
index 7b4b828..7413080 100644
--- a/src/tinymfv/instrument.py
+++ b/src/tinymfv/instrument.py
@@ -167,13 +167,3 @@ def reduce_ordinal(items: dict[str, dict], instr: Instrument) -> np.ndarray:
         agr = (instr.scale_max + 1 - E) if it["sign"] < 0 else E
         by_dim[it["dimension"]].append(agr)
     return np.array([float(np.mean(by_dim[d])) for d in instr.dimensions])
-
-
-# --- negative control (currently unwired): shuffle item->dimension; the shuffled profile's
-# correlation with the true profile must collapse to chance, else the signal is a layout artifact.
-# A non-null steering result is only interpretable once this passes. ---
-
-def shuffle_dimensions(items: dict[str, dict], rng: np.random.Generator) -> dict[str, dict]:
-    dims = [it["dimension"] for it in items.values()]
-    rng.shuffle(dims)
-    return {iid: {**it, "dimension": d} for (iid, it), d in zip(items.items(), dims)}