Complete POLYCODE-WP-0002 simulator v0.1 scaffold

experiments.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+"""Tiny parameter sweep for PolyCode Simulator v0.1."""
+from __future__ import annotations
+
+import json
+from copy import deepcopy
+from datetime import UTC, datetime
+from pathlib import Path
+
+from simulator import load_params, run_simulation
+
+
+def sweep(thresholds: list[float] | None = None) -> list[dict]:
+    thresholds = thresholds or [300.0, 400.0, 500.0]
+    rows: list[dict] = []
+    base = load_params()
+    for threshold in thresholds:
+        params = deepcopy(base)
+        params["funding_threshold"] = threshold
+        summary = run_simulation(params)
+        rows.append(
+            {
+                "funding_threshold": threshold,
+                "acceptance_rate": summary.acceptance_rate,
+                "accepted": summary.accepted,
+                "rejected": summary.rejected,
+                "total_funded": summary.total_funded,
+            }
+        )
+    return rows
+
+
+def main() -> None:
+    rows = sweep()
+    out_dir = Path("runs")
+    out_dir.mkdir(exist_ok=True)
+    stamp = datetime.now(UTC).strftime("%Y%m%dT%H%M%SZ")
+    path = out_dir / f"sweep-{stamp}.json"
+    path.write_text(json.dumps({"sweep": rows}, indent=2), encoding="utf-8")
+    print("Sweep results:")
+    for row in rows:
+        print(row)
+    print(f"output: {path}")
+
+
+if __name__ == "__main__":
+    main()