training-model-material / scripts /best_tables.py
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"""Summarise the performance-first (``best_*``) runs.
Produces ``results/tables/tab_best.csv`` with, per architecture:
* per-fold stress R2 averaged over seeds (mean +- sd over folds/seeds)
* pooled out-of-fold stress / shape / primary R2 for seed 0 and for the
seed-averaged predictions (all seeds share one fold split by construction)
and prints the markdown table used in the report.
"""
from __future__ import annotations
import json
import sys
from pathlib import Path
import numpy as np
import pandas as pd
ROOT = Path(__file__).resolve().parents[1]
sys.path.insert(0, str(ROOT / "code"))
from pimamba.data import TARGETS, TARGET_KEYS # noqa: E402
from pimamba.metrics import PRIMARY, _r2, regression_metrics # noqa: E402
RUNS = ROOT / "results" / "runs"
TABLES = ROOT / "results" / "tables"
def runs_of(prefix: str):
out = {}
for d in RUNS.glob(f"{prefix}_*_f*_s*"):
try:
m, f, s = d.name[len(prefix) + 1:].rsplit("_", 2)
f = int(f[1:]); s = int(s[1:])
except ValueError:
continue
if (d / "metrics.json").exists():
out.setdefault(m, {}).setdefault(s, {})[f] = d
return out
def pooled(tags: dict, seeds: list[int]):
"""Pool the predictions of one model over the given seeds."""
P, Y, M = [], [], []
for f in sorted(tags[seeds[0]]):
arrs = [np.load(tags[s][f] / "predictions.npz", allow_pickle=True)
for s in seeds if f in tags.get(s, {})]
if not arrs:
continue
P.append(np.mean([a["pred"] for a in arrs], 0))
Y.append(arrs[0]["true"]); M.append(arrs[0]["mask"])
if not P:
return None
return (np.concatenate(P), np.concatenate(Y), np.concatenate(M))
def score(P, Y, M):
pt = regression_metrics(Y.reshape(-1, len(TARGETS)), P.reshape(-1, len(TARGETS)),
M.reshape(-1, len(TARGETS)))
j = TARGET_KEYS.index("sigma")
mm = M[:, :, j] > 0
sig = _r2(Y[:, :, j][mm], P[:, :, j][mm])
ys, ps = [], []
for i in range(P.shape[0]):
k = M[i, :, j] > 0
if k.sum() < 4:
continue
ys.append(Y[i, k, j] - Y[i, k, j].mean())
ps.append(P[i, k, j] - P[i, k, j].mean())
shape = _r2(np.concatenate(ys), np.concatenate(ps))
prim = [pt[k]["r2"] for k in PRIMARY if np.isfinite(pt[k]["r2"])]
return dict(sigma=sig, shape=shape, primary=float(np.mean(prim)))
def main(prefix="best"):
found = runs_of(prefix)
rows = []
for m, per_seed in sorted(found.items()):
seeds = sorted(per_seed)
folds = sorted(per_seed[seeds[0]])
nparams = json.loads((per_seed[seeds[0]][folds[0]] / "metrics.json").read_text())["n_params"]
fold_r2 = []
for s in seeds:
for f, d in per_seed[s].items():
r = json.loads((d / "metrics.json").read_text())
fold_r2.append(r["per_target"]["sigma"]["r2"])
row = {"model": m, "seeds": len(seeds), "folds": len(folds),
"params": nparams,
"fold_r2_mean": float(np.mean(fold_r2)),
"fold_r2_sd": float(np.std(fold_r2)),
"n_runs": sum(len(v) for v in per_seed.values())}
full = all(len(per_seed[s]) == 5 for s in seeds)
if full:
for tag, ss in (("seed0", [seeds[0]]), ("seedavg", seeds)):
g = pooled(per_seed, ss)
sc = score(*g)
row[f"{tag}_sigma"] = round(sc["sigma"], 3)
row[f"{tag}_shape"] = round(sc["shape"], 3)
row[f"{tag}_primary"] = round(sc["primary"], 3)
rows.append(row)
df = pd.DataFrame(rows)
TABLES.mkdir(parents=True, exist_ok=True)
df.to_csv(TABLES / f"tab_{prefix}.csv", index=False)
print(df.to_string(index=False))
return df
if __name__ == "__main__":
main(sys.argv[1] if len(sys.argv) > 1 else "best")