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PythagorasGoal/src/live/signal_engine.py
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Adriano Dal Pastro 9879b46688 refactor(strategie): tieni solo MR01 mean-reversion, squeeze -> waste
L'analisi out-of-sample fee-aware ha dimostrato che l'intera famiglia
squeeze-breakout (SQ01-04, MT01, ML01, AD01, CM01, PD01) non ha edge:
le accuratezze storiche 76-82% erano un artefatto di look-ahead (ingresso
a close[i-1] con direzione decisa da close[i]). Sotto ingresso onesto a
close[i] e fee reali tutte perdono, anche a fee zero.

- nuova MR01_bollinger_fade (mean-reversion): edge netto validato OOS,
  robusto su griglia parametri e fino a 0.20% fee RT. BTC 1h n50 k2.5: +201% OOS, DD 15%
- 9 strategie squeeze spostate in scripts/waste/
- strategy_loader + strategies.yml: solo MR01 (BTC/ETH 1h)
- signal_engine.train: validazione OOS (accuratezza test + signal precision)
- scripts/analysis/strategy_research.py: harness di ricerca fee-aware

NOTA: lo StrategyWorker va aggiornato per usare gli exit TP/SL passati in
metadata prima di tradare MR01 dal vivo (ora esce solo a hold_bars/stop fisso).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-28 20:22:11 +00:00

285 lines
9.7 KiB
Python

"""Motore segnali: squeeze detection + ML confirmation su dati live."""
from __future__ import annotations
import numpy as np
import pandas as pd
from sklearn.ensemble import GradientBoostingClassifier
from sklearn.preprocessing import StandardScaler
def keltner_ratio(close: np.ndarray, high: np.ndarray, low: np.ndarray, window: int = 14) -> np.ndarray:
n = len(close)
result = np.full(n, np.nan)
for i in range(window, n):
wc = close[i - window : i]
wh = high[i - window : i]
wl = low[i - window : i]
ma = np.mean(wc)
bb_std = np.std(wc)
tr = np.maximum(wh - wl, np.maximum(np.abs(wh - np.roll(wc, 1)), np.abs(wl - np.roll(wc, 1))))
atr = np.mean(tr[1:])
kc_r = (ma + 1.5 * atr) - (ma - 1.5 * atr)
bb_r = (ma + 2 * bb_std) - (ma - 2 * bb_std)
if kc_r > 0:
result[i] = bb_r / kc_r
return result
def build_features(df: pd.DataFrame, i: int, squeeze_duration: int, squeeze_avg_vol: float, kcr_val: float) -> np.ndarray | None:
if i < 100 or i >= len(df):
return None
o = df["open"].values
h = df["high"].values
l = df["low"].values
c = df["close"].values
v = df["volume"].values
feats = []
for w in [12, 24, 48]:
if i < w:
feats.extend([0] * 12)
continue
win_c = c[i - w : i]
win_o = o[i - w : i]
win_h = h[i - w : i]
win_l = l[i - w : i]
win_v = v[i - w : i]
mn, mx = win_l.min(), max(win_h.max(), win_c.max())
rng = mx - mn if mx - mn > 0 else 1e-10
total = win_h - win_l
total = np.where(total == 0, 1e-10, total)
body = np.abs(win_c - win_o) / total
direction = np.sign(win_c - win_o)
log_c = np.log(np.where(win_c == 0, 1e-10, win_c))
rets = np.diff(log_c)
v_mean = np.mean(win_v)
feats.extend([
np.mean(rets) if len(rets) > 0 else 0,
np.std(rets) if len(rets) > 0 else 0,
np.sum(rets) if len(rets) > 0 else 0,
float(pd.Series(rets).skew()) if len(rets) > 2 else 0,
float(pd.Series(rets).kurtosis()) if len(rets) > 3 else 0,
np.mean(body),
np.std(body),
np.mean(direction),
np.mean(direction[-min(3, w):]),
(win_c[-1] - mn) / rng,
win_v[-1] / v_mean if v_mean > 0 else 1,
np.corrcoef(rets[:-1], rets[1:])[0, 1] if len(rets) > 1 and np.std(rets) > 0 else 0,
])
feats.extend([
squeeze_duration,
squeeze_duration / (24 * 4),
kcr_val,
v[i - 1] / squeeze_avg_vol if squeeze_avg_vol > 0 else 1,
np.mean(v[max(0, i - 3) : i]) / squeeze_avg_vol if squeeze_avg_vol > 0 else 1,
])
h48 = np.max(h[max(0, i - 48) : i])
l48 = np.min(l[max(0, i - 48) : i])
r48 = h48 - l48
feats.append((c[i - 1] - l48) / r48 if r48 > 0 else 0.5)
tr = np.maximum(h[i - 14 : i] - l[i - 14 : i],
np.maximum(np.abs(h[i - 14 : i] - np.roll(c[i - 14 : i], 1)),
np.abs(l[i - 14 : i] - np.roll(c[i - 14 : i], 1))))
atr = np.mean(tr[1:])
feats.append(atr / c[i - 1] if c[i - 1] > 0 else 0)
first_ret = (c[i - 1] - c[i - 2]) / c[i - 2] if i >= 2 and c[i - 2] > 0 else 0
feats.append(first_ret)
return np.nan_to_num(np.array(feats), nan=0, posinf=1e6, neginf=-1e6)
class SignalEngine:
"""Rileva squeeze e genera segnali ML in real-time."""
def __init__(self, bb_w: int = 14, sq_thr: float = 0.8, ml_thr: float = 0.70, min_squeeze_bars: int = 5):
self.bb_w = bb_w
self.sq_thr = sq_thr
self.ml_thr = ml_thr
self.min_squeeze_bars = min_squeeze_bars
self.model: GradientBoostingClassifier | None = None
self.scaler: StandardScaler | None = None
self.in_squeeze = False
self.squeeze_start_idx = 0
self.trained = False
def _new_model(self) -> GradientBoostingClassifier:
return GradientBoostingClassifier(
n_estimators=150, max_depth=4, min_samples_leaf=10,
learning_rate=0.05, subsample=0.8, random_state=42,
)
def _validate_oos(self, X: np.ndarray, y: np.ndarray, test_frac: float = 0.2) -> dict:
"""Split temporale (no shuffle) per stimare la performance out-of-sample.
Allena su training iniziale e valuta sull'ultimo `test_frac` dei campioni.
Oltre all'accuratezza OOS, riporta la precisione sui soli segnali con
confidenza >= ml_thr — cioè i trade che la strategia aprirebbe davvero.
"""
n_test = int(len(X) * test_frac)
n_train = len(X) - n_test
if n_train < 30 or n_test < 5:
return {"oos_warning": "test set troppo piccolo", "oos_test_samples": n_test}
scaler = StandardScaler()
X_tr = scaler.fit_transform(X[:n_train])
X_te = scaler.transform(X[n_train:])
y_tr, y_te = y[:n_train], y[n_train:]
model = self._new_model()
model.fit(X_tr, y_tr)
up_idx = list(model.classes_).index(1)
p_up = model.predict_proba(X_te)[:, up_idx]
test_acc = float(np.mean((p_up >= 0.5).astype(int) == y_te) * 100)
oos_train_acc = float(np.mean(model.predict(X_tr) == y_tr) * 100)
long_sig = p_up >= self.ml_thr
short_sig = p_up <= (1 - self.ml_thr)
n_sig = int((long_sig | short_sig).sum())
if n_sig > 0:
correct = int(((long_sig & (y_te == 1)) | (short_sig & (y_te == 0))).sum())
sig_prec = round(correct / n_sig * 100, 1)
else:
sig_prec = None
return {
"oos_train_accuracy": round(oos_train_acc, 1),
"oos_test_accuracy": round(test_acc, 1),
"oos_test_samples": n_test,
"oos_signals": n_sig,
"oos_signal_precision": sig_prec,
}
def train(self, df: pd.DataFrame, lookahead: int = 3) -> dict:
"""Addestra il modello su dati storici."""
close = df["close"].values
high = df["high"].values
low = df["low"].values
volume = df["volume"].values
n = len(df)
kcr = keltner_ratio(close, high, low, self.bb_w)
X_all, y_all = [], []
in_sq = False
sq_start = 0
for i in range(self.bb_w + 1, n - lookahead):
if np.isnan(kcr[i]):
continue
is_sq = kcr[i] < self.sq_thr
if is_sq and not in_sq:
in_sq = True
sq_start = i
elif not is_sq and in_sq:
in_sq = False
duration = i - sq_start
if duration < self.min_squeeze_bars:
continue
avg_vol = np.mean(volume[sq_start:i])
feats = build_features(df, i, duration, avg_vol, kcr[i])
if feats is None:
continue
actual = (close[i + lookahead - 1] - close[i - 1]) / close[i - 1]
X_all.append(feats)
y_all.append(1 if actual > 0 else 0)
if len(X_all) < 30:
return {"error": "not enough training samples", "samples": len(X_all)}
X = np.array(X_all)
y = np.array(y_all)
oos = self._validate_oos(X, y)
self.scaler = StandardScaler()
X_s = self.scaler.fit_transform(X)
self.model = self._new_model()
self.model.fit(X_s, y)
self.trained = True
preds = self.model.predict(X_s)
train_acc = float(np.mean(preds == y) * 100)
return {
"samples": len(X),
"up_ratio": round(float(np.mean(y) * 100), 1),
"train_accuracy": round(train_acc, 1),
**oos,
}
def check_signal(self, df: pd.DataFrame) -> dict | None:
"""Controlla se c'è un segnale sulle ultime candele.
Ritorna dict con direzione e probabilità, oppure None.
"""
if not self.trained:
return None
close = df["close"].values
high = df["high"].values
low = df["low"].values
volume = df["volume"].values
n = len(df)
kcr = keltner_ratio(close, high, low, self.bb_w)
if n < self.bb_w + 10:
return None
last_kcr = kcr[-1]
prev_kcr = kcr[-2] if n > 1 else np.nan
if np.isnan(last_kcr) or np.isnan(prev_kcr):
return None
was_squeeze = prev_kcr < self.sq_thr
is_released = last_kcr >= self.sq_thr
if not (was_squeeze and is_released):
self.in_squeeze = prev_kcr < self.sq_thr
if self.in_squeeze and not hasattr(self, '_sq_start_tracking'):
self._sq_start_tracking = n - 1
if not self.in_squeeze:
self._sq_start_tracking = None
return None
sq_start = getattr(self, '_sq_start_tracking', n - 10)
if sq_start is None:
sq_start = n - 10
duration = (n - 1) - sq_start
if duration < self.min_squeeze_bars:
self._sq_start_tracking = None
return None
avg_vol = np.mean(volume[max(0, sq_start) : n - 1])
feats = build_features(df, n - 1, duration, avg_vol, last_kcr)
self._sq_start_tracking = None
if feats is None:
return None
feats_s = self.scaler.transform(feats.reshape(1, -1))
proba = self.model.predict_proba(feats_s)[0]
up_idx = list(self.model.classes_).index(1)
p_up = proba[up_idx]
if p_up >= self.ml_thr:
return {"direction": "buy", "probability": p_up, "squeeze_duration": duration}
elif p_up <= (1 - self.ml_thr):
return {"direction": "sell", "probability": 1 - p_up, "squeeze_duration": duration}
return None