From 83d41933b218d38ef1da9623b7aa126ac04b3386 Mon Sep 17 00:00:00 2001
From: wassname <github@wassname>
Date: Mon, 1 Jun 2026 23:36:26 +0000
Subject: [PATCH] fix(plot): no-floor route2 deploy panel was blank -- hk_abl
 column present but all-nan

The plotter picked hk_abl (dense proxy) whenever the COLUMN existed, but no-floor
runs (rollout_ablate_frac=0) emit hk_abl as 0/0 -> all-nan, so the deploy panel
came up empty. Test for finite data (_has_data) not column presence; fall back to
the sparse-but-real hk_dep (every eval_ablate_every steps). _ema carries values
across the nan gaps -> a held step-line.

Co-Authored-By: Claudypoo <288921227+claudypoo@users.noreply.github.com>
---
 docs/figs/dyn_sub4.png              |  1 +
 docs/figs/dyn_sub4_hack_overlay.png |  1 +
 scripts/plot_dynamics.py            | 10 +++++++---
 3 files changed, 9 insertions(+), 3 deletions(-)
 create mode 120000 docs/figs/dyn_sub4.png
 create mode 120000 docs/figs/dyn_sub4_hack_overlay.png

diff --git a/docs/figs/dyn_sub4.png b/docs/figs/dyn_sub4.png
new file mode 120000
index 0000000..6d64c4d
--- /dev/null
+++ b/docs/figs/dyn_sub4.png
@@ -0,0 +1 @@
+../../out/figs/dyn_sub4.png
\ No newline at end of file
diff --git a/docs/figs/dyn_sub4_hack_overlay.png b/docs/figs/dyn_sub4_hack_overlay.png
new file mode 120000
index 0000000..beb4b08
--- /dev/null
+++ b/docs/figs/dyn_sub4_hack_overlay.png
@@ -0,0 +1 @@
+../../out/figs/dyn_sub4_hack_overlay.png
\ No newline at end of file
diff --git a/scripts/plot_dynamics.py b/scripts/plot_dynamics.py
index 673b3d5..1dbab9e 100644
--- a/scripts/plot_dynamics.py
+++ b/scripts/plot_dynamics.py
@@ -128,12 +128,16 @@ def parse_log(path: Path) -> dict | None:
     # under the hack_s/gt_s keys -> all downstream (panels, onset, overlay) reads
     # it. Prefer the DENSE per-step proxy (hk_abl, every step) over the sparse
     # held-out eval (hk_dep, every eval_ablate_every steps); fall back to hk_dep
-    # for older runs that predate the proxy.
+    # when hk_abl carries no data. No-floor runs (rollout_ablate_frac=0) have the
+    # hk_abl COLUMN present but every cell is "0/0" -> all-nan, so test for finite
+    # values, not mere column presence, else the deploy panel comes up blank.
+    def _has_data(key):
+        return key in run and np.isfinite(run[key]).any()
     if arm in ("routing", "routing2"):
-        if "hk_abl" in run:
+        if _has_data("hk_abl"):
             run["hack_s"] = run["hk_abl"]
             run["gt_s"] = run["slv_abl"]
-        elif "hk_dep" in run:
+        elif _has_data("hk_dep"):
             run["hack_s"] = run["hk_dep"]
             run["gt_s"] = run["slv_dep"]
     return run