优化6个类，现在ks降低到0.28，史称3.0版本

example/pv_stats.py

@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+"""Stats for PV sensors (Type 4) with heavy tails / regime changes."""
+
+import argparse
+import csv
+import gzip
+import json
+from pathlib import Path
+from typing import Dict, List
+
+
+def parse_args():
+    base_dir = Path(__file__).resolve().parent
+    parser = argparse.ArgumentParser(description="PV stats.")
+    parser.add_argument("--generated", default=str(base_dir / "results" / "generated.csv"))
+    parser.add_argument("--reference", default=str(base_dir / "config.json"))
+    parser.add_argument("--features", default="", help="comma-separated list")
+    parser.add_argument("--config", default=str(base_dir / "config.json"))
+    parser.add_argument("--out", default=str(base_dir / "results" / "pv_stats.json"))
+    parser.add_argument("--max-rows", type=int, default=200000)
+    return parser.parse_args()
+
+
+def resolve_reference_glob(ref_arg: str) -> str:
+    ref_path = Path(ref_arg)
+    if ref_path.suffix == ".json":
+        cfg = json.loads(ref_path.read_text(encoding="utf-8"))
+        data_glob = cfg.get("data_glob") or cfg.get("data_path") or ""
+        if not data_glob:
+            raise SystemExit("reference config has no data_glob/data_path")
+        combined = ref_path.parent / data_glob
+        if "*" in str(combined) or "?" in str(combined):
+            return str(combined)
+        return str(combined.resolve())
+    return str(ref_path)
+
+
+def read_series(path: Path, cols: List[str], max_rows: int) -> Dict[str, List[float]]:
+    vals = {c: [] for c in cols}
+    opener = gzip.open if str(path).endswith(".gz") else open
+    with opener(path, "rt", newline="") as fh:
+        reader = csv.DictReader(fh)
+        for i, row in enumerate(reader):
+            for c in cols:
+                try:
+                    vals[c].append(float(row[c]))
+                except Exception:
+                    pass
+            if max_rows > 0 and i + 1 >= max_rows:
+                break
+    return vals
+
+
+def quantile_stats(series: List[float]):
+    if not series:
+        return {"q05": None, "q50": None, "q95": None, "tail_ratio": None}
+    xs = sorted(series)
+    n = len(xs)
+    def q(p):
+        idx = int(round(p * (n - 1)))
+        idx = max(0, min(n - 1, idx))
+        return xs[idx]
+    q05 = q(0.05)
+    q50 = q(0.5)
+    q95 = q(0.95)
+    tail_ratio = (q95 - q50) / (q50 - q05) if (q50 - q05) != 0 else None
+    return {"q05": q05, "q50": q50, "q95": q95, "tail_ratio": tail_ratio}
+
+
+def main():
+    args = parse_args()
+    features = [f.strip() for f in args.features.split(",") if f.strip()]
+    if not features and Path(args.config).exists():
+        cfg = json.loads(Path(args.config).read_text(encoding="utf-8"))
+        features = cfg.get("type4_features", []) or []
+    if not features:
+        raise SystemExit("no features specified for pv_stats")
+
+    gen_vals = read_series(Path(args.generated), features, args.max_rows)
+    ref_glob = resolve_reference_glob(args.reference)
+    ref_paths = sorted(Path(ref_glob).parent.glob(Path(ref_glob).name))
+    if not ref_paths:
+        raise SystemExit(f"no reference files matched: {ref_glob}")
+    real_vals = {c: [] for c in features}
+    for p in ref_paths:
+        vals = read_series(p, features, args.max_rows)
+        for c in features:
+            real_vals[c].extend(vals[c])
+
+    out = {"features": features, "generated": {}, "reference": {}}
+    for c in features:
+        out["generated"][c] = quantile_stats(gen_vals[c])
+        out["reference"][c] = quantile_stats(real_vals[c])
+
+    out_path = Path(args.out)
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    out_path.write_text(json.dumps(out, indent=2), encoding="utf-8")
+    print("wrote", out_path)
+
+
+if __name__ == "__main__":
+    main()