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shy3130
e0cd625ef4
- 因子平台: /factors 一级页(检验/因子库/编辑器/组合/挖掘), DSL 公式因子(25 算子点选、双语字段、我的因子模板、脏公式守卫), 版本与生命周期, 自动挖掘 L1 统计筛选 - 因子↔策略四条桥: 触发器 Zap 快建因子条件信号、因子一键生成排名策略、自定义信号 AI 提示词接入因子分组、策略回测因子归因(胜/败单入场信号日因子均值, 独立 tab, 双语因子名) - 回测: 统计卡新增盈亏比(≥1 红/<1 绿), 蒙卡回撤合并为中位/95% 双值卡(自适应字号), 高级设置基础过滤与策略编辑器参数对齐(5 组区间) - 信号库独立页 /signals(原设置 tab 迁出), 持仓提醒入导航; 挖掘并入因子页第 5 tab, /mining 旧链接重定向 - 研究线配套: 因子目录 61→77(评分/矩阵双内核), stats_v2(Newey-West/BH-FDR/DSR), enriched 管道与异动/报价服务配套调整 - 文档: README 导航与特性表、features.md 因子平台章节、操作说明书 9.2、factor-platform-plan 执行状态与 §5、二开文档桥接说明; 交流与支持节改版 - 版本 0.2.2 → 0.2.3; 后端全量 1625 passed(1 例环境性跳过), 前端 build 通过
455 lines
19 KiB
Python
455 lines
19 KiB
Python
"""因子注册表 API — 因子库 (P1) + 公式校验/试算 (P2) + 自定义/复合因子 CRUD (P3)。"""
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from __future__ import annotations
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from datetime import date, timedelta
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import polars as pl
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from fastapi import APIRouter, HTTPException, Query, Request
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from pydantic import BaseModel, Field
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from app.factors import store
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from app.factors.dsl import FACTOR_COLUMN, compile_formula
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from app.factors.registry import all_factors, unregister_factor
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router = APIRouter(prefix="/api/factors", tags=["factors"])
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@router.get("")
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def list_factors(asset_type: str | None = Query(default=None, pattern="^(stock|etf)$")) -> dict:
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"""注册表因子列表; asset_type 过滤适用资产 (财务因子仅股票)。"""
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specs = all_factors(asset_type=asset_type)
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return {
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"factors": [
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{
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"id": spec.id,
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"label": spec.label,
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"group": spec.group,
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"kind": spec.kind,
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"version": spec.version,
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"formula": spec.formula_text,
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"direction": spec.direction,
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"unit": spec.unit,
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"warmup_bars": spec.warmup_bars,
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"pit": spec.pit,
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"asset_types": sorted(spec.asset_types),
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"stability": spec.stability,
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"scale_free": spec.scale_free,
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"dependencies": sorted(spec.dependencies),
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}
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for spec in specs
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]
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}
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class FormulaValidateRequest(BaseModel):
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formula: str = Field(..., min_length=1, max_length=2000)
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def _compiled_payload(compiled) -> dict:
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return {
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"ok": compiled.ok,
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"errors": [error.to_dict() for error in compiled.errors],
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"dependencies": sorted(compiled.dependencies),
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"referenced_factors": sorted(compiled.referenced_factors),
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"warmup_bars": compiled.warmup_bars,
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"cross_sectional": compiled.cross_sectional,
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}
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@router.post("/validate")
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def validate_formula(req: FormulaValidateRequest) -> dict:
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"""公式校验: 语法/语义/窗口纪律/依赖推导, 编译期 fail-closed。"""
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return _compiled_payload(compile_formula(req.formula))
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class FormulaTrialRequest(FormulaValidateRequest):
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asset_type: str = Field(default="stock", pattern="^(stock|etf)$")
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days: int = Field(default=40, ge=20, le=120)
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@router.post("/trial")
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def trial_formula(req: FormulaTrialRequest, request: Request) -> dict:
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"""公式试算: 最近 N 个交易日截面 Rank IC 快照 (复用回测面板与虚拟因子物化路径)。"""
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compiled = compile_formula(req.formula)
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if not compiled.ok:
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raise HTTPException(status_code=400, detail={"errors": [error.to_dict() for error in compiled.errors]})
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from app.api.backtest import _get_engine
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# 交易日 → 自然日换算 (A股年均 243 交易日 ≈ 1.48 自然日/交易日), 留 buffer
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calendar_days = int((compiled.warmup_bars + req.days) * 1.6) + 15
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start = date.today() - timedelta(days=calendar_days)
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# 面板基础物理列 (load_panel 只返回 parquet 物理列, 因子列由补算路径生成)
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base_columns = ["symbol", "date", "open", "high", "low", "close", "volume", "amount", "turnover_rate"]
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if "consecutive_limit_ups" in compiled.dependencies:
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base_columns.append("consecutive_limit_ups")
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engine = _get_engine(request)
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panel = engine.load_panel(None, start, date.today(), columns=base_columns, asset_type=req.asset_type)
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if panel.is_empty():
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raise HTTPException(status_code=400, detail="当前数据目录无可用历史数据, 无法试算")
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# 复用检验引擎同一条补算路径 (compute_indicators + 虚拟因子物化), 禁止第二套计算逻辑
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from app.backtest.factor import FactorBacktestService
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physical = set(panel.columns)
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to_compute = set(compiled.referenced_factors) | {
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dep for dep in compiled.dependencies if dep not in physical
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}
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if to_compute:
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panel = FactorBacktestService._compute_missing_factors(panel, to_compute)
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if compiled.frame_transform is None:
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raise HTTPException(status_code=500, detail="编译产物缺少帧变换")
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prepared = compiled.frame_transform(panel)
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if prepared is None:
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raise HTTPException(
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status_code=400,
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detail={"errors": [{
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"code": "E013", "message": "依赖列不可用: 面板缺少公式所需列",
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"position": {"offset": 0, "line": 1},
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"detail": {"missing": sorted((compiled.dependencies | compiled.referenced_factors) - set(panel.columns))},
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}]},
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)
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total_rows = panel.height
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frame = (
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prepared
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.with_columns(
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(pl.col("close").shift(-1).over("symbol") / pl.col("close") - 1.0).alias("_next_return")
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)
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.filter(pl.col(FACTOR_COLUMN).is_not_null())
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.unique(subset=["symbol", "date"], keep="last")
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.sort(["symbol", "date"])
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)
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non_null_rows = frame.height
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if non_null_rows == 0:
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return {
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"ok": True, "n_dates": 0, "null_ratio": 1.0,
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"ic_mean": None, "ic_std": None, "ir": None, "ic_win_rate": None,
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"ic_series": [], "message": "试算区间内公式输出全为空 (检查预热窗口与数据范围)",
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}
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ic_frame = (
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frame.filter(pl.col("_next_return").is_not_null())
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.group_by("date")
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.agg(
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pl.corr(pl.col(FACTOR_COLUMN).rank(method="average"), pl.col("_next_return").rank(method="average")).alias("ic"),
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pl.len().alias("n_symbols"),
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)
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.filter(pl.col("ic").is_not_null())
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.sort("date")
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.tail(req.days)
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)
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ic_series = [
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{"date": str(row["date"]), "ic": round(row["ic"], 4), "n_symbols": row["n_symbols"]}
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for row in ic_frame.to_dicts()
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]
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if ic_frame.is_empty():
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return {
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"ok": True, "n_dates": 0, "null_ratio": round(1.0 - non_null_rows / max(total_rows, 1), 4),
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"ic_mean": None, "ic_std": None, "ir": None, "ic_win_rate": None,
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"ic_series": [], "message": "无有效 IC 截面 (需每期 ≥2 只标的)",
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}
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stats = ic_frame.select(
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pl.col("ic").mean().alias("mean"),
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pl.col("ic").std(ddof=0).alias("std"),
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(pl.col("ic") > 0).mean().alias("win"),
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).row(0, named=True)
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ic_std = stats["std"]
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# Newey-West t (lag=1): 与检验页同源口径, 样本过少时不给 (fail-closed)
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t_newey_west = None
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if ic_frame.height >= 5:
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from app.backtest.stats_v2 import newey_west_t
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values = ic_frame["ic"].to_numpy()
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nw = newey_west_t(values, lag=1)
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if nw is not None:
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t_newey_west = round(float(nw[0]), 3)
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return {
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"ok": True,
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"n_dates": ic_frame.height,
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"null_ratio": round(1.0 - non_null_rows / max(total_rows, 1), 4),
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"ic_mean": round(stats["mean"], 4),
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"ic_std": None if ic_std is None else round(ic_std, 4),
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"ir": None if not ic_std or ic_std == 0 else round(stats["mean"] / ic_std, 3),
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"ic_win_rate": round(stats["win"], 4),
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"t_newey_west": t_newey_west,
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"ic_series": ic_series,
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}
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# ── 自定义/复合因子 CRUD (P3) ──────────────────────────────
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class CustomFactorCreateRequest(BaseModel):
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id: str | None = Field(default=None, max_length=48)
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label: str = Field(..., min_length=1, max_length=32)
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group: str = Field(default="自定义", max_length=16)
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formula: str = Field(..., min_length=1, max_length=2000)
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description: str = Field(default="", max_length=500)
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direction: str = Field(default="none", pattern="^(high|low|none)$")
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class CompositeFactorCreateRequest(BaseModel):
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id: str | None = Field(default=None, max_length=48)
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label: str = Field(..., min_length=1, max_length=32)
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group: str = Field(default="组合", max_length=16)
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members: dict[str, float] = Field(..., min_length=2, max_length=8)
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description: str = Field(default="", max_length=500)
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direction: str = Field(default="none", pattern="^(high|low|none)$")
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def _data_dir(request: Request):
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from pathlib import Path
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data_dir = getattr(getattr(request.app.state, "repo", None), "store", None)
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root = getattr(data_dir, "data_dir", None) if data_dir is not None else None
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if root is None:
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raise HTTPException(status_code=500, detail="数据目录不可用")
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return Path(root)
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def _slugify_id(label: str, prefix: str) -> str:
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base = "".join(ch if ch.isascii() and (ch.isalnum() or ch == "_") else "_" for ch in label.lower())
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candidate = f"{prefix}_{base}".strip("_")[:44]
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import re
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candidate = re.sub(r"_+", "_", candidate)
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return candidate or f"{prefix}_f"
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def _resolve_id(requested: str | None, label: str, prefix: str) -> str:
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return requested.strip() if requested and requested.strip() else _slugify_id(label, prefix)
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def _next_version(data_dir, factor_id: str) -> int:
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for definition in store.load_all(data_dir):
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if str(definition.get("id")) == factor_id:
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return int(definition.get("version", 1)) + 1
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return 1
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def _trial_nonempty(request: Request, formula: str, asset_type: str = "stock") -> None:
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"""保存前置校验: 公式在最近 40 个交易日有非空输出 (设计 §3.5, fail-closed)。"""
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compiled = compile_formula(formula)
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if not compiled.ok:
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raise HTTPException(status_code=400, detail={"errors": [e.to_dict() for e in compiled.errors]})
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from app.api.backtest import _get_engine
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from app.backtest.factor import FactorBacktestService
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calendar_days = int((compiled.warmup_bars + 40) * 1.6) + 15
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base_columns = ["symbol", "date", "open", "high", "low", "close", "volume", "amount", "turnover_rate"]
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engine = _get_engine(request)
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panel = engine.load_panel(None, date.today() - timedelta(days=calendar_days), date.today(), columns=base_columns, asset_type=asset_type)
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if panel.is_empty():
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raise HTTPException(status_code=400, detail="当前无历史数据, 无法完成保存前试算 (fail-closed)")
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physical = set(panel.columns)
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to_compute = set(compiled.referenced_factors) | {d for d in compiled.dependencies if d not in physical}
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if to_compute:
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panel = FactorBacktestService._compute_missing_factors(panel, to_compute)
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prepared = compiled.frame_transform(panel) if compiled.frame_transform else None
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if prepared is None or prepared[FACTOR_COLUMN].is_not_null().sum() == 0:
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raise HTTPException(status_code=400, detail="公式在最近 40 个交易日输出全为空, 拒绝保存")
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@router.post("/custom")
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def create_custom_factor(req: CustomFactorCreateRequest, request: Request) -> dict:
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"""保存自定义公式因子: 编译通过 + 服务端试算非空 (fail-closed)。"""
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data_dir = _data_dir(request)
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factor_id = _resolve_id(req.id, req.label, "uf")
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definition = {
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"id": factor_id,
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"kind": "custom",
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"version": _next_version(data_dir, factor_id),
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"label": req.label,
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"group": req.group,
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"formula": req.formula,
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"description": req.description,
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"direction": req.direction,
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"status": "draft",
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"created_at": store._now(),
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"updated_at": store._now(),
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}
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try:
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store.to_spec(definition) # 先做 schema/id/编译校验
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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_trial_nonempty(request, req.formula)
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try:
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store.register_definition(definition)
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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store.save_one(data_dir, definition)
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return {"ok": True, "id": factor_id, "version": definition["version"]}
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@router.post("/composite")
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def create_composite_factor(req: CompositeFactorCreateRequest, request: Request) -> dict:
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"""保存复合因子: 成员校验 + 循环引用检查 (无需试算, 值由成员物化路径计算)。"""
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data_dir = _data_dir(request)
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factor_id = _resolve_id(req.id, req.label, "cf")
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definition = {
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"id": factor_id,
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"kind": "composite",
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"version": _next_version(data_dir, factor_id),
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"label": req.label,
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"group": req.group,
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"members": req.members,
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"description": req.description,
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"direction": req.direction,
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"status": "draft",
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"created_at": store._now(),
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"updated_at": store._now(),
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}
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try:
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store.register_definition(definition)
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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store.save_one(data_dir, definition)
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return {"ok": True, "id": factor_id, "version": definition["version"]}
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class CustomFactorUpdateRequest(BaseModel):
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label: str = Field(..., min_length=1, max_length=32)
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group: str = Field(default="自定义", max_length=16)
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formula: str = Field(..., min_length=1, max_length=2000)
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description: str = Field(default="", max_length=500)
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direction: str = Field(default="none", pattern="^(high|low|none)$")
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@router.post("/custom/{factor_id}/update")
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def update_custom_factor(factor_id: str, req: CustomFactorUpdateRequest, request: Request) -> dict:
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"""编辑已有自定义因子: 编译校验 + 试算非空 (与创建同一门禁) → 版本提升注册。
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公式变化时状态回 draft (生命周期语义: 编辑后需重新检验激活); 仅改名称/分组保留状态。
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"""
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data_dir = _data_dir(request)
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target = None
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for definition in store.load_all(data_dir):
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if str(definition.get("id")) == factor_id:
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target = definition
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break
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if target is None:
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raise HTTPException(status_code=404, detail=f"自定义因子不存在: {factor_id}")
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if str(target.get("kind", "custom")) != "custom":
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raise HTTPException(status_code=400, detail=f"仅自定义因子支持公式编辑 (kind={target.get('kind')})")
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formula_changed = str(target.get("formula")) != req.formula
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if formula_changed:
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_trial_nonempty(request, req.formula)
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target.update({
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"label": req.label,
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"group": req.group,
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"formula": req.formula,
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"description": req.description,
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"direction": req.direction,
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"version": int(target.get("version", 1)) + 1, # 版本提升 → 注册表允许覆盖
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"status": "draft" if formula_changed else str(target.get("status", "draft")),
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"updated_at": store._now(),
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})
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try:
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store.register_definition(target)
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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store.save_one(data_dir, target)
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return {"ok": True, "id": factor_id, "version": target["version"], "status": target["status"]}
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def _find_references(data_dir, factor_id: str) -> list[str]:
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"""扫描策略与复合因子定义中的引用 (删除前 fail-closed 检查)。"""
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references: list[str] = []
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strategies_dir = data_dir / "strategies"
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if strategies_dir.is_dir():
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for file in strategies_dir.glob("*.json"):
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try:
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text = file.read_text(encoding="utf-8")
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if factor_id in text:
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references.append(f"strategies/{file.name}")
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except OSError:
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continue
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for definition in store.load_all(data_dir):
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if str(definition.get("id")) == factor_id:
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continue
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members = definition.get("members")
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if isinstance(members, dict) and factor_id in members:
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references.append(f"custom_factors/{definition.get('id')}.json")
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return references
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@router.delete("/custom/{factor_id}")
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def delete_custom_factor(factor_id: str, request: Request, force: bool = Query(default=False)) -> dict:
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"""删除自定义/复合因子; 有引用时列出引用方并拒绝 (需 force)。"""
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data_dir = _data_dir(request)
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from app.factors.registry import get_factor
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|
|
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if get_factor(factor_id) is None and not store.delete_one(data_dir, factor_id):
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raise HTTPException(status_code=404, detail=f"因子不存在: {factor_id}")
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|
references = _find_references(data_dir, factor_id)
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if references and not force:
|
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raise HTTPException(
|
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status_code=409,
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detail={"message": "该因子仍有引用, 拒绝删除 (可带 force=true 强制)", "references": references},
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|
)
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try:
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unregister_factor(factor_id)
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|
except ValueError as exc:
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|
raise HTTPException(status_code=400, detail=str(exc)) from exc
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|
store.delete_one(data_dir, factor_id)
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|
return {"ok": True, "id": factor_id, "removed_references": references}
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|
|
|
|
|
class FactorStatusRequest(BaseModel):
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status: str = Field(..., pattern="^(draft|active|watch|retired)$")
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|
|
|
|
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@router.post("/custom/{factor_id}/status")
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|
def update_factor_status(factor_id: str, req: FactorStatusRequest, request: Request) -> dict:
|
|
"""生命周期状态迁移 (P4): draft->active->watch->retired, 编辑后回 draft。"""
|
|
data_dir = _data_dir(request)
|
|
target = None
|
|
for definition in store.load_all(data_dir):
|
|
if str(definition.get("id")) == factor_id:
|
|
target = definition
|
|
break
|
|
if target is None:
|
|
raise HTTPException(status_code=404, detail=f"自定义因子不存在: {factor_id}")
|
|
target["status"] = req.status
|
|
target["updated_at"] = store._now()
|
|
try:
|
|
# 动态因子先注销再注册: 元数据变更 (status/group) 不提升版本,
|
|
# 直接 register 会因"版本未提升"被拒 (启动加载后的真实路径)
|
|
unregister_factor(factor_id)
|
|
store.register_definition(target) # 状态与 stability 联动
|
|
except ValueError as exc:
|
|
raise HTTPException(status_code=400, detail=str(exc)) from exc
|
|
store.save_one(data_dir, target)
|
|
return {"ok": True, "id": factor_id, "status": req.status}
|
|
|
|
|
|
class FactorGroupRequest(BaseModel):
|
|
group: str = Field(..., min_length=1, max_length=24)
|
|
|
|
|
|
@router.post("/custom/{factor_id}/group")
|
|
def update_factor_group(factor_id: str, req: FactorGroupRequest, request: Request) -> dict:
|
|
"""修改单个自定义/复合因子的分组 (内置因子分组与快照/预设绑定, 不可改)。"""
|
|
data_dir = _data_dir(request)
|
|
group = req.group.strip()
|
|
if not group:
|
|
raise HTTPException(status_code=400, detail="分组名不能为空")
|
|
target = None
|
|
for definition in store.load_all(data_dir):
|
|
if str(definition.get("id")) == factor_id:
|
|
target = definition
|
|
break
|
|
if target is None:
|
|
raise HTTPException(status_code=404, detail=f"自定义因子不存在: {factor_id}")
|
|
target["group"] = group
|
|
target["updated_at"] = store._now()
|
|
try:
|
|
unregister_factor(factor_id)
|
|
store.register_definition(target)
|
|
except ValueError as exc:
|
|
raise HTTPException(status_code=400, detail=str(exc)) from exc
|
|
store.save_one(data_dir, target)
|
|
return {"ok": True, "id": factor_id, "group": group}
|