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8 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 944af06a87 | |||
| 97e42d7a1a | |||
| 5481e83f03 | |||
| 88c4cc4a33 | |||
| 01889a6b64 | |||
| 443c6d47b2 | |||
| b10d3512df | |||
| d75cba934e |
@@ -1,3 +1,3 @@
|
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{
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||||
".": "1.3.1"
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".": "1.3.3"
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}
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@@ -1,5 +1,25 @@
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# Changelog
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|
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## [1.3.3](https://github.com/TPTBusiness/Predix/compare/v1.3.2...v1.3.3) (2026-04-25)
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|
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|
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### Bug Fixes
|
||||
|
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* **backtest:** replace broken MC permutation test with binomial win-rate test ([c38d894](https://github.com/TPTBusiness/Predix/commit/c38d89478f586825bfca5715a96ca70ccd8791a3))
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* **factors:** detect and correct look-ahead bias in daily-constant factors ([eb490a4](https://github.com/TPTBusiness/Predix/commit/eb490a461b66cbd815ae53ac5205115754712432))
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* **factors:** extend look-ahead rules to session factors and add intraday-factor guidance ([c24c100](https://github.com/TPTBusiness/Predix/commit/c24c100442d6487686c0578de0b32d240fcbf215))
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* **loop:** compress old experiment history in proposal prompt to reduce context size ([4bf90a9](https://github.com/TPTBusiness/Predix/commit/4bf90a905ba8b2aba2a818191c19998088cccaaf))
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* **strategies:** guard against None IC in acceptance check, disable slow wf_rolling ([2197f52](https://github.com/TPTBusiness/Predix/commit/2197f52150a50ef38d9e70991d7e48c8c30caec4))
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* **strategies:** handle None ic/sharpe/dd in rejected strategy log output ([ad2ad3a](https://github.com/TPTBusiness/Predix/commit/ad2ad3ab3360ea75ed3bbc90c12098b9c5cc0114))
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## [1.3.2](https://github.com/TPTBusiness/Predix/compare/v1.3.1...v1.3.2) (2026-04-23)
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||||
|
||||
|
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### Bug Fixes
|
||||
|
||||
* **strategies:** guard against None IC in acceptance check, disable slow wf_rolling ([2197f52](https://github.com/TPTBusiness/Predix/commit/2197f52150a50ef38d9e70991d7e48c8c30caec4))
|
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* **strategies:** handle None ic/sharpe/dd in rejected strategy log output ([ad2ad3a](https://github.com/TPTBusiness/Predix/commit/ad2ad3ab3360ea75ed3bbc90c12098b9c5cc0114))
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## [1.3.1](https://github.com/TPTBusiness/Predix/compare/v1.3.0...v1.3.1) (2026-04-21)
|
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|
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@@ -356,11 +356,12 @@ def monte_carlo_trade_pvalue(
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"""
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Monte Carlo permutation test on trade-level P&L.
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|
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Shuffles the order of trade returns ``n_permutations`` times and computes
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the fraction of runs whose total return is >= the real total return.
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Runs a one-sided binomial test on trade-level win rate.
|
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|
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p < 0.05 → strategy has a statistically significant edge (real return
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beats 95% of random sequences with the same set of trades).
|
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Tests H0: win_rate = 0.5 (random trading) against H1: win_rate > 0.5.
|
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The ``n_permutations`` parameter is kept for API compatibility but is unused.
|
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|
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p < 0.05 → win rate is significantly above 50%, indicating a genuine per-trade edge.
|
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|
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Parameters
|
||||
----------
|
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@@ -379,14 +380,14 @@ def monte_carlo_trade_pvalue(
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if len(trade_pnl) < 2:
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return 1.0
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trades = trade_pnl.values.copy()
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real_total = float(trades.sum())
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rng = np.random.default_rng(seed)
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beat = 0
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for _ in range(n_permutations):
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perm = rng.permutation(trades)
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if perm.sum() >= real_total:
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beat += 1
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return beat / n_permutations
|
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# Binomial test: is the win rate significantly above 50%?
|
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# p = probability of observing >= n_wins out of n_trades under null (win_rate=0.5).
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# Low p → strategy has a significant positive edge per trade.
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from scipy.stats import binomtest
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n_wins = int((trades > 0).sum())
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n_total = len(trades)
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result = binomtest(n_wins, n_total, p=0.5, alternative="greater")
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return float(result.pvalue)
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|
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def walk_forward_rolling(
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@@ -53,7 +53,7 @@ evolving_strategy_factor_implementation_v1_system: |-
|
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- ALWAYS use `min_periods=N` where N equals the window size in rolling calculations (e.g., `.rolling(20, min_periods=20)`)
|
||||
- ALWAYS handle infinite values after division: `.replace([np.inf, -np.inf], np.nan)` before saving results
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- ALWAYS use `groupby(level=1)` or `groupby('instrument')` before rolling operations on MultiIndex dataframes
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- Process the COMPLETE date range (2020-2026), do NOT filter by date
|
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- Process the COMPLETE date range available in the HDF5 file (do NOT filter by date — the file may contain 2024 debug data or full 2020-2026 data)
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- Use `groupby().transform()` instead of `groupby().apply()` for single-column assignments
|
||||
|
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Notice that you should not add any other text before or after the json format.
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@@ -29,6 +29,83 @@ from rdagent.scenarios.qlib.experiment.model_experiment import QlibModelExperime
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DIRNAME = Path(__file__).absolute().resolve().parent
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DIRNAME_local = Path.cwd()
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def _shift_daily_constant_factor_if_needed(factor_col: "pd.Series", factor_name: str) -> "pd.Series":
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"""Detect and fix look-ahead bias in daily-constant factors.
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A factor is "daily-constant" when every minute bar within the same calendar
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day carries an identical value. This happens when LLM code computes a daily
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aggregate (e.g. today's log return) and forward-fills it across all intraday
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bars without shifting — meaning the end-of-day value is visible at 00:00.
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|
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Fix: shift by one trading day so that the value assigned to day T is the
|
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aggregate computed from day T-1, eliminating the forward-looking information.
|
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"""
|
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import numpy as np
|
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|
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try:
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notnull = factor_col.dropna()
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if len(notnull) < 200:
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return factor_col
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datetimes = notnull.index.get_level_values("datetime")
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dates = datetimes.normalize()
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# Sample up to 50 random days and check intra-day uniqueness
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unique_dates = pd.Series(dates.unique())
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sample_dates = unique_dates.sample(min(50, len(unique_dates)), random_state=42)
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daily_unique_counts = []
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for d in sample_dates:
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mask = dates == d
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vals = notnull.values[mask]
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if len(vals) > 1:
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daily_unique_counts.append(len(np.unique(vals[~np.isnan(vals)])))
|
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|
||||
if not daily_unique_counts:
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return factor_col
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|
||||
# If >90% of sampled days have exactly 1 unique value → daily-constant
|
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fraction_constant = sum(1 for c in daily_unique_counts if c == 1) / len(daily_unique_counts)
|
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if fraction_constant < 0.90:
|
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return factor_col # Intraday factor — no shift needed
|
||||
|
||||
logger.warning(
|
||||
f"[LookAheadFix] Factor '{factor_name}' is daily-constant "
|
||||
f"({fraction_constant:.0%} of days). Applying 1-day shift to remove look-ahead bias."
|
||||
)
|
||||
|
||||
# Shift: for each instrument, map daily values forward by 1 trading day
|
||||
instruments = factor_col.index.get_level_values("instrument").unique()
|
||||
shifted_parts = []
|
||||
for inst in instruments:
|
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inst_series = factor_col.xs(inst, level="instrument")
|
||||
# Get one value per calendar day (the first non-null bar)
|
||||
inst_dt = inst_series.index.normalize()
|
||||
daily_vals = inst_series.groupby(inst_dt).first()
|
||||
# Shift by 1 day
|
||||
daily_vals_shifted = daily_vals.shift(1)
|
||||
# Forward-fill back to minute bars
|
||||
minute_idx = inst_series.index
|
||||
minute_dates = minute_idx.normalize()
|
||||
shifted_minute = minute_dates.map(daily_vals_shifted)
|
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shifted_s = pd.Series(
|
||||
shifted_minute.values,
|
||||
index=pd.MultiIndex.from_arrays(
|
||||
[inst_series.index, [inst] * len(inst_series)],
|
||||
names=["datetime", "instrument"],
|
||||
),
|
||||
name=factor_col.name,
|
||||
)
|
||||
shifted_parts.append(shifted_s)
|
||||
|
||||
return pd.concat(shifted_parts).sort_index()
|
||||
|
||||
except Exception as e:
|
||||
logger.debug(f"[LookAheadFix] Could not apply daily shift for '{factor_name}': {e}")
|
||||
return factor_col
|
||||
|
||||
|
||||
# TODO: supporting multiprocessing and keep previous results
|
||||
|
||||
|
||||
@@ -391,8 +468,19 @@ class QlibFactorRunner(CachedRunner[QlibFactorExperiment]):
|
||||
import numpy as np
|
||||
|
||||
try:
|
||||
# Get workspace path
|
||||
workspace_path = exp.experiment_workspace.workspace_path
|
||||
# Get workspace path — factor code and result.h5 live in sub_workspace_list[0],
|
||||
# not in experiment_workspace (which is the Qlib template workspace).
|
||||
workspace_path = None
|
||||
if exp.sub_workspace_list:
|
||||
for ws in exp.sub_workspace_list:
|
||||
if ws is not None and hasattr(ws, 'workspace_path'):
|
||||
candidate = ws.workspace_path / "result.h5"
|
||||
if candidate.exists():
|
||||
workspace_path = ws.workspace_path
|
||||
break
|
||||
if workspace_path is None:
|
||||
# Fallback to experiment_workspace
|
||||
workspace_path = exp.experiment_workspace.workspace_path
|
||||
if workspace_path is None:
|
||||
return None
|
||||
|
||||
@@ -409,6 +497,12 @@ class QlibFactorRunner(CachedRunner[QlibFactorExperiment]):
|
||||
factor_col = factor_values.iloc[:, 0]
|
||||
factor_name = factor_values.columns[0]
|
||||
|
||||
# Detect and fix look-ahead bias in daily-constant factors.
|
||||
# If a factor has the same value for all minute bars within each calendar day
|
||||
# it was computed from same-day data (e.g. today's close return at 00:00).
|
||||
# Fix: shift by 1 trading day so value at day T = aggregate of day T-1.
|
||||
factor_col = _shift_daily_constant_factor_if_needed(factor_col, factor_name)
|
||||
|
||||
# Load source data for forward returns
|
||||
data_path = (
|
||||
Path(__file__).parent.parent.parent.parent.parent
|
||||
@@ -587,10 +681,12 @@ class QlibFactorRunner(CachedRunner[QlibFactorExperiment]):
|
||||
from pathlib import Path
|
||||
from rdagent.components.backtesting import ResultsDatabase
|
||||
|
||||
# Get factor name from hypothesis
|
||||
# Get factor name: prefer hypothesis, fallback to result Series 'factor_name' key
|
||||
factor_name = "unknown"
|
||||
if hasattr(exp, 'hypothesis') and exp.hypothesis is not None:
|
||||
factor_name = getattr(exp.hypothesis, 'hypothesis', 'unknown')
|
||||
if factor_name == 'unknown' and isinstance(result, pd.Series) and 'factor_name' in result.index:
|
||||
factor_name = str(result['factor_name'])
|
||||
|
||||
# Check if already rejected by protection
|
||||
if getattr(exp, 'rejected_by_protection', False):
|
||||
@@ -824,41 +920,74 @@ class QlibFactorRunner(CachedRunner[QlibFactorExperiment]):
|
||||
"""
|
||||
Save factor time-series values as parquet for strategy building.
|
||||
|
||||
This is essential for walk-forward validation and strategy combination.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
factor_name : str
|
||||
Name of the factor
|
||||
exp : QlibFactorExperiment
|
||||
The experiment with factor values
|
||||
Reruns the factor code on the FULL 6-year dataset so the parquet covers
|
||||
the complete backtest range (not just the debug 2024 subset).
|
||||
"""
|
||||
import os as _os
|
||||
import subprocess
|
||||
import shutil
|
||||
import tempfile
|
||||
|
||||
try:
|
||||
# Get workspace path
|
||||
workspace_path = exp.experiment_workspace.workspace_path
|
||||
# factor.py lives in sub_workspace_list[0], not experiment_workspace
|
||||
workspace_path = None
|
||||
if exp.sub_workspace_list:
|
||||
for ws in exp.sub_workspace_list:
|
||||
if ws is not None and hasattr(ws, 'workspace_path'):
|
||||
fp = ws.workspace_path / "factor.py"
|
||||
if fp.exists():
|
||||
workspace_path = ws.workspace_path
|
||||
break
|
||||
if workspace_path is None:
|
||||
workspace_path = exp.experiment_workspace.workspace_path
|
||||
if workspace_path is None:
|
||||
return
|
||||
|
||||
result_h5 = workspace_path / "result.h5"
|
||||
if not result_h5.exists():
|
||||
factor_py = workspace_path / "factor.py"
|
||||
if not factor_py.exists():
|
||||
return
|
||||
|
||||
# Read factor values
|
||||
project_root = Path(__file__).parent.parent.parent.parent.parent
|
||||
full_data = (
|
||||
project_root
|
||||
/ "git_ignore_folder"
|
||||
/ "factor_implementation_source_data"
|
||||
/ "intraday_pv.h5"
|
||||
)
|
||||
if not full_data.exists():
|
||||
return
|
||||
|
||||
# Run factor code on full data in a temp workspace
|
||||
import pandas as pd
|
||||
df = pd.read_hdf(str(result_h5), key="data")
|
||||
with tempfile.TemporaryDirectory(prefix="predix_fullval_") as tmp_dir:
|
||||
tmp = Path(tmp_dir)
|
||||
shutil.copy(str(factor_py), str(tmp / "factor.py"))
|
||||
shutil.copy(str(full_data), str(tmp / "intraday_pv.h5"))
|
||||
|
||||
ret = subprocess.run(
|
||||
["python", "factor.py"],
|
||||
cwd=str(tmp),
|
||||
capture_output=True,
|
||||
timeout=300,
|
||||
)
|
||||
if ret.returncode != 0:
|
||||
# Fall back to debug-data result if full-data run fails
|
||||
result_h5 = workspace_path / "result.h5"
|
||||
if not result_h5.exists():
|
||||
return
|
||||
df = pd.read_hdf(str(result_h5), key="data")
|
||||
else:
|
||||
result_h5_full = tmp / "result.h5"
|
||||
if not result_h5_full.exists():
|
||||
return
|
||||
df = pd.read_hdf(str(result_h5_full), key="data")
|
||||
|
||||
if df is None or df.empty:
|
||||
return
|
||||
|
||||
# Get the factor series (first column)
|
||||
series = df.iloc[:, 0]
|
||||
series.name = factor_name
|
||||
|
||||
# Save to results/factors/values/
|
||||
project_root = Path(__file__).parent.parent.parent.parent.parent
|
||||
|
||||
# Parallel run isolation
|
||||
parallel_run_id = _os.getenv("PARALLEL_RUN_ID", "0")
|
||||
if parallel_run_id != "0":
|
||||
values_dir = project_root / "results" / "runs" / f"run{parallel_run_id}" / "factors" / "values"
|
||||
@@ -866,16 +995,11 @@ class QlibFactorRunner(CachedRunner[QlibFactorExperiment]):
|
||||
values_dir = project_root / "results" / "factors" / "values"
|
||||
|
||||
values_dir.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
# Safe filename
|
||||
safe_name = factor_name.replace("/", "_").replace("\\", "_").replace(" ", "_")[:100]
|
||||
parquet_path = values_dir / f"{safe_name}.parquet"
|
||||
series.to_frame().to_parquet(str(parquet_path))
|
||||
|
||||
# Save as parquet (with datetime index)
|
||||
series.to_parquet(str(parquet_path))
|
||||
|
||||
except Exception as e:
|
||||
# Don't let factor value saving break the main workflow
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
def _log_result_warnings(self, factor_name: str, result, metrics: dict) -> None:
|
||||
|
||||
@@ -23,14 +23,25 @@ $low: low price at 1-minute bar.
|
||||
$volume: volume at 1-minute bar (tick volume for FX).
|
||||
|
||||
## Important Notes for 1min Data
|
||||
- 96 bars = 1 trading day (24 hours for FX)
|
||||
- 1 bar = 1 minute (confirmed)
|
||||
- 16 bars = 16 minutes
|
||||
- 4 bars = 4 minutes
|
||||
- 1 bar = 1 minute
|
||||
- 60 bars = 1 hour
|
||||
- ~1440 bars = 1 full trading day (FX trades nearly 24h, Mon 00:00 - Fri 22:00 UTC approx.)
|
||||
- Typical bars per calendar day: ~1200-1440 (varies by weekday, holidays have fewer)
|
||||
- Do NOT assume 96 bars/day — the actual count depends on the date
|
||||
- Data range: 2020-01-01 to 2026-03-20
|
||||
- Instrument: EURUSD
|
||||
- Timezone: UTC
|
||||
|
||||
## IMPORTANT: Bars per Day Correction
|
||||
The dataset has approximately 1440 bars per full trading day (1 bar = 1 minute, ~24h of FX trading).
|
||||
Some older documentation incorrectly stated "96 bars = 1 day" — this is WRONG. Always use:
|
||||
- 60 bars = 1 hour
|
||||
- 480 bars = 8 hours (London session 08:00-16:00 UTC)
|
||||
- 180 bars = 3 hours (London/NY overlap 13:00-16:00 UTC)
|
||||
Use datetime hour filtering (e.g., `df[df.index.get_level_values('datetime').hour.between(8, 15)]`)
|
||||
to select session bars — do NOT use bar-count offsets to define sessions.
|
||||
|
||||
## Session Times (UTC)
|
||||
- Asian: 00:00-08:00 UTC (low volatility)
|
||||
- London: 08:00-16:00 UTC (high volatility)
|
||||
|
||||
@@ -104,7 +104,7 @@ qlib_factor_strategy: |-
|
||||
result_df.columns = ['daily_volume_price_divergence']
|
||||
```
|
||||
|
||||
4. **Process ALL data — do not filter dates**: The source HDF5 contains data from 2020-01-01 to 2026-03-20. Do NOT filter to a single year. If your output has only 314 entries (one year of daily data), the factor will be rejected. Expected output: ~1500+ daily entries for 2020-2026.
|
||||
4. **Process ALL data — do not filter dates**: The source HDF5 contains data from 2020-01-01 to 2026-03-20 (development runs may use a 2024-only debug dataset with ~300 entries, which is acceptable). Do NOT filter to a single year in your code. Write your code to process whatever date range is available in the HDF5 file — do not hardcode date filters. Expected output for production data: ~1500+ daily entries for 2020-2026. Expected output for debug data: ~300 daily entries for 2024. Both are valid.
|
||||
|
||||
5. **Use `transform()` instead of `apply()` for per-group calculations**: `transform()` preserves the original index while `apply()` may reduce the number of rows unexpectedly:
|
||||
```python
|
||||
@@ -121,6 +121,35 @@ qlib_factor_strategy: |-
|
||||
assert result_df.index.names == ['datetime', 'instrument'], f"Index names must be ['datetime', 'instrument'], got {result_df.index.names}"
|
||||
```
|
||||
|
||||
7. **NEVER use same-day aggregations as the factor value — always shift by 1 day**: If your factor computes a daily aggregate (e.g. daily close return, daily OHLC range, daily volume), that aggregate is only known at end-of-day. Using it at the start of the same day is look-ahead bias. You MUST shift the daily aggregate by 1 day before forward-filling to minute bars:
|
||||
```python
|
||||
# WRONG: look-ahead bias! Today's close return is not known at 00:00
|
||||
daily_ret = df['$close'].groupby(level='instrument').resample('1D', level='datetime').last().pct_change()
|
||||
result_df['my_factor'] = daily_ret.groupby(level='instrument').transform(lambda x: x.reindex(df.index.get_level_values('datetime'), method='ffill'))
|
||||
|
||||
# CORRECT: shift by 1 trading day so factor value at day T = aggregate of day T-1
|
||||
daily_close = df.groupby([df.index.get_level_values('datetime').normalize(), df.index.get_level_values('instrument')])['$close'].last()
|
||||
daily_close.index.names = ['date', 'instrument']
|
||||
daily_ret = daily_close.groupby(level='instrument').pct_change().shift(1) # <-- shift(1) is MANDATORY
|
||||
# then map back to minute bars via ffill
|
||||
```
|
||||
This rule applies to ALL daily aggregations: returns, OHLC stats, volume, momentum, slopes, etc.
|
||||
**Session-based aggregations (London, NY, Asian session returns) are also daily aggregations** — the London
|
||||
session (08:00-16:00 UTC) ends at 16:00, so its return must be shifted by 1 day before use.
|
||||
Intraday rolling factors (e.g. 30-min rolling std computed at bar t using only bars t-N..t-1) do NOT need this shift.
|
||||
|
||||
8. **PREFER pure intraday rolling factors**: Factors that use only a trailing window of recent bars (e.g.
|
||||
rolling(30).mean() of returns, RSI(14), Bollinger Band z-score) have NO look-ahead risk and vary every
|
||||
minute. These are the best candidates for short-horizon (60-180 bar) prediction. Examples:
|
||||
- Rolling 15-min / 30-min / 60-min return momentum (15, 30, 60 bars respectively)
|
||||
- Rolling volatility (std of returns over 20-60 bars)
|
||||
- Distance of close from N-bar moving average (z-score)
|
||||
- RSI or similar oscillators computed on 1-min bars
|
||||
- VWAP deviation (requires volume — use $volume column)
|
||||
Always use `.shift(1)` on the lagged window (e.g. `rolling(N).mean().shift(1)`) to avoid using the
|
||||
current bar's own price in its own feature value.
|
||||
NOTE: 1 bar = 1 minute. The data has ~1440 bars per full trading day. Do NOT use 96 as a day proxy.
|
||||
|
||||
qlib_factor_output_format: |-
|
||||
Your output should be a pandas dataframe similar to the following example information:
|
||||
<class 'pandas.core.frame.DataFrame'>
|
||||
|
||||
@@ -152,9 +152,41 @@ class QlibQuantHypothesisGen(FactorAndModelHypothesisGen):
|
||||
factor_inserted = True
|
||||
if len(specific_trace.hist) > 0:
|
||||
specific_trace.hist.reverse()
|
||||
hypothesis_and_feedback = T("scenarios.qlib.prompts:hypothesis_and_feedback").r(
|
||||
trace=specific_trace,
|
||||
)
|
||||
# Keep only the 2 most recent experiments in full detail; compress older ones
|
||||
# to brief bullet points to stay within the LLM context window.
|
||||
FULL_DETAIL_COUNT = 2
|
||||
old_hist = specific_trace.hist[:-FULL_DETAIL_COUNT] if len(specific_trace.hist) > FULL_DETAIL_COUNT else []
|
||||
recent_hist = specific_trace.hist[-FULL_DETAIL_COUNT:] if len(specific_trace.hist) > FULL_DETAIL_COUNT else specific_trace.hist
|
||||
|
||||
parts = []
|
||||
if old_hist:
|
||||
summary_lines = ["## Earlier experiments (summarized):"]
|
||||
for exp, fb in old_hist:
|
||||
factor_names = []
|
||||
for task in exp.sub_tasks:
|
||||
if task is not None and hasattr(task, "factor_name"):
|
||||
factor_names.append(task.factor_name)
|
||||
elif task is not None and hasattr(task, "model_type"):
|
||||
factor_names.append(getattr(task, "model_type", "model"))
|
||||
names_str = ", ".join(factor_names) if factor_names else "unknown"
|
||||
ic_str = ""
|
||||
try:
|
||||
if exp.result is not None:
|
||||
ic_val = exp.result.loc["IC"] if "IC" in exp.result.index else ""
|
||||
ic_str = f" IC={ic_val:.4f}" if ic_val != "" else ""
|
||||
except Exception:
|
||||
pass
|
||||
decision_str = "PASS" if fb.decision else "FAIL"
|
||||
obs_short = (fb.observations or "")[:120].replace("\n", " ")
|
||||
summary_lines.append(f"- [{decision_str}]{ic_str} {names_str}: {obs_short}")
|
||||
parts.append("\n".join(summary_lines))
|
||||
|
||||
if recent_hist:
|
||||
recent_trace = Trace(specific_trace.scen)
|
||||
recent_trace.hist = recent_hist
|
||||
parts.append(T("scenarios.qlib.prompts:hypothesis_and_feedback").r(trace=recent_trace))
|
||||
|
||||
hypothesis_and_feedback = "\n\n".join(parts)
|
||||
else:
|
||||
hypothesis_and_feedback = "No previous hypothesis and feedback available."
|
||||
|
||||
|
||||
@@ -198,6 +198,55 @@ def scan_factors(workspace_dir: Path, skip_evaluated: bool = True) -> List[Facto
|
||||
return factors
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# Look-ahead bias detection for daily-constant factors
|
||||
# ---------------------------------------------------------------------------
|
||||
def _shift_daily_constant_factor_if_needed(factor_col: "pd.Series", factor_name: str) -> "pd.Series":
|
||||
"""Detect daily-constant factors (look-ahead bias) and shift by 1 trading day."""
|
||||
sample_days = factor_col.index.get_level_values("datetime").normalize().unique()
|
||||
if len(sample_days) < 10:
|
||||
return factor_col
|
||||
rng = np.random.default_rng(42)
|
||||
days_to_check = rng.choice(sample_days, size=min(50, len(sample_days)), replace=False)
|
||||
constant_count = 0
|
||||
for day in days_to_check:
|
||||
day_mask = factor_col.index.get_level_values("datetime").normalize() == day
|
||||
day_vals = factor_col[day_mask].dropna()
|
||||
if len(day_vals) == 0:
|
||||
continue
|
||||
if day_vals.nunique() == 1:
|
||||
constant_count += 1
|
||||
fraction_constant = constant_count / len(days_to_check)
|
||||
if fraction_constant < 0.90:
|
||||
return factor_col
|
||||
# Shift by 1 trading day per instrument
|
||||
import logging
|
||||
logging.getLogger(__name__).info(
|
||||
"Factor '%s' is %.0f%% daily-constant — shifting 1 trading day to fix look-ahead bias",
|
||||
factor_name, fraction_constant * 100,
|
||||
)
|
||||
instruments = factor_col.index.get_level_values("instrument").unique() if "instrument" in factor_col.index.names else [None]
|
||||
shifted_parts = []
|
||||
for instr in instruments:
|
||||
if instr is not None:
|
||||
mask = factor_col.index.get_level_values("instrument") == instr
|
||||
col_instr = factor_col[mask]
|
||||
else:
|
||||
col_instr = factor_col
|
||||
dates = col_instr.index.get_level_values("datetime").normalize()
|
||||
trading_days = dates.unique().sort_values()
|
||||
day_first = col_instr.groupby(dates).first()
|
||||
day_first_shifted = day_first.shift(1)
|
||||
day_first_shifted.index = pd.to_datetime(day_first_shifted.index)
|
||||
day_map = day_first_shifted.reindex(pd.to_datetime(trading_days)).values
|
||||
new_vals = pd.Series(
|
||||
day_map[np.searchsorted(trading_days.values, dates.values)],
|
||||
index=col_instr.index,
|
||||
)
|
||||
shifted_parts.append(new_vals)
|
||||
return pd.concat(shifted_parts).sort_index()
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# Factor evaluator
|
||||
# ---------------------------------------------------------------------------
|
||||
@@ -263,6 +312,7 @@ def evaluate_factor_full(factor: FactorInfo, full_data: pd.DataFrame,
|
||||
result = pd.read_hdf(str(result_file), key="data")
|
||||
total_count = len(result)
|
||||
factor_val = result.iloc[:, 0]
|
||||
factor_val = _shift_daily_constant_factor_if_needed(factor_val, factor.factor_name)
|
||||
non_null_count = factor_val.notna().sum()
|
||||
|
||||
if non_null_count < 1000:
|
||||
|
||||
@@ -250,7 +250,7 @@ Hard requirements:
|
||||
- NO global mean/std — always use rolling(window).mean() with shift(1) to avoid look-ahead bias"""
|
||||
|
||||
else:
|
||||
system_prompt = f"""You are a quantitative trading expert specializing in EUR/USD intraday strategies.
|
||||
system_prompt = f"""You are a quantitative trading expert specializing in EUR/USD daily swing strategies.
|
||||
|
||||
CRITICAL RULES for {STYLE_DESC} (forward horizon: {FORWARD_BARS} bars = ~{FORWARD_BARS/60:.1f} hours):
|
||||
1. ONLY use the factors listed below - no others!
|
||||
@@ -258,15 +258,27 @@ CRITICAL RULES for {STYLE_DESC} (forward horizon: {FORWARD_BARS} bars = ~{FORWAR
|
||||
3. Create a pandas Series called 'signal' with values: 1 (long), -1 (short), 0 (neutral)
|
||||
4. signal.index MUST match close.index
|
||||
5. signal.name must be 'signal'
|
||||
6. IMPORTANT: factors are DAILY values broadcast to every 1-minute bar — they change once per day.
|
||||
Use daily-level logic: compare today's factor value to a rolling daily mean (window 5-20 DAYS).
|
||||
To get daily rolling mean: group by date, take first value per day, compute rolling, then reindex back.
|
||||
Example: dates = factors[col].index.get_level_values('datetime').normalize()
|
||||
daily_vals = factors[col].groupby(dates).first()
|
||||
daily_mean = daily_vals.rolling(10).mean().shift(1)
|
||||
daily_signal = (daily_vals > daily_mean).astype(int) * 2 - 1
|
||||
signal = daily_signal.reindex(dates).values (broadcast back to minute bars)
|
||||
7. The signal should change roughly once per day — this produces ~250-500 trades over 6 years.
|
||||
8. Keep conditions SIMPLE: one factor above/below its N-day rolling average. Avoid combining 3+ conditions.
|
||||
|
||||
Output ONLY valid JSON with these fields:
|
||||
{{"strategy_name": "short_name", "factor_names": ["f1", "f2"], "description": "one sentence", "code": "python code"}}"""
|
||||
|
||||
user_prompt = f"""Create a EUR/USD trading strategy using these factors:
|
||||
user_prompt = f"""Create a EUR/USD SWING trading strategy (hold ~{FORWARD_BARS/60:.0f} hours) using these factors:
|
||||
|
||||
{factor_list}
|
||||
|
||||
{f'Previous feedback: {feedback}' if feedback else 'First attempt - be creative!'}"""
|
||||
{f'Previous feedback: {feedback}' if feedback else 'First attempt - be creative!'}
|
||||
|
||||
Use daily-level signal logic (factor above/below rolling daily mean). Signal changes once per day."""
|
||||
|
||||
api = APIBackend()
|
||||
response = api.build_messages_and_create_chat_completion(
|
||||
@@ -371,8 +383,8 @@ signal.fillna(0).to_pickle('signal.pkl')
|
||||
txn_cost_bps=TXN_COST_BPS,
|
||||
forward_returns=fwd_returns,
|
||||
oos_start=OOS_START_DEFAULT,
|
||||
wf_rolling=True,
|
||||
mc_n_permutations=200,
|
||||
wf_rolling=False, # too slow on 2M bars — run via rebacktest script instead
|
||||
mc_n_permutations=50,
|
||||
)
|
||||
|
||||
# ============================================================================
|
||||
@@ -579,7 +591,7 @@ def main(target_count=10):
|
||||
# Check acceptance criteria — OOS must be profitable + statistically significant
|
||||
mc_ok = mc_pvalue is None or mc_pvalue < 0.20 # lenient: top 20% non-random
|
||||
wf_ok = wf_consistency is None or wf_consistency >= 0.5 # ≥50% of WF windows profitable
|
||||
if (abs(ic) > MIN_IC and sharpe > MIN_SHARPE and trades > MIN_TRADES and dd > MAX_DRAWDOWN
|
||||
if (abs(ic or 0) > MIN_IC and sharpe > MIN_SHARPE and trades > MIN_TRADES and dd > MAX_DRAWDOWN
|
||||
and oos_sharpe > 0.0 and oos_monthly > 0.0 and mc_ok and wf_ok):
|
||||
# ACCEPT
|
||||
strategy['real_backtest'] = bt_result
|
||||
@@ -636,9 +648,10 @@ def main(target_count=10):
|
||||
oos_info = f"OOS_Sharpe={oos_sharpe:+.2f} OOS_Mon={oos_monthly:+.2f}%" if oos_sharpe is not None else ""
|
||||
mc_info = f" MC_p={mc_pvalue:.2f}" if mc_pvalue is not None else ""
|
||||
wf_info = f" WF_consistency={wf_consistency:.0%}" if wf_consistency is not None else ""
|
||||
_log.info(f"REJECTED IC={ic:.4f} Sharpe={sharpe:.2f} Trades={trades} DD={dd:.1%} {oos_info}{mc_info}{wf_info}")
|
||||
_ic = ic or 0; _sh = sharpe or 0; _dd = dd or 0
|
||||
_log.info(f"REJECTED IC={_ic:.4f} Sharpe={_sh:.2f} Trades={trades} DD={_dd:.1%} {oos_info}{mc_info}{wf_info}")
|
||||
feedback_history.append(
|
||||
f"Failed: IC={ic:.4f}, Sharpe={sharpe:.2f}, Trades={trades}, DD={dd:.1%}, "
|
||||
f"Failed: IC={_ic:.4f}, Sharpe={_sh:.2f}, Trades={trades}, DD={_dd:.1%}, "
|
||||
f"OOS_Sharpe={oos_sharpe:+.2f}, OOS_Monthly={oos_monthly:+.2f}%"
|
||||
+ (f", MC_p={mc_pvalue:.2f}" if mc_pvalue is not None else "")
|
||||
+ (f", WF_consistency={wf_consistency:.0%}" if wf_consistency is not None else "")
|
||||
|
||||
Reference in New Issue
Block a user