Qlib AI 量化
基于微软 qlib 的 AI 量化研究平台:Alpha158/TFT 特征工程、预测模型、组合优化、多频回测一体化。支持 A 股 + 美股 + 港股多市场。
晶体简介
Constraints
Evidence Quality
Medium confidence — review before critical use
61 条不可违反的约束
WHENWhen implementing expression load with index range parameters
ACTIONAllow start_index to exceed end_index in Expression.load
CONSEQUENCEInvalid index range causes data corruption where features return empty or misaligned series, breaking calendar index alignment for all downstream consumers
WHENWhen implementing a new Expression subclass
ACTIONImplement _load_internal abstract method to return pd.Series indexed by calendar
CONSEQUENCESubclass without _load_internal raises NotImplementedError, preventing feature calculation and breaking the entire data pipeline
WHENWhen using PIT (Point-in-Time) database expressions
ACTIONCreate PIT expressions with positive right extended window (end_ws > 0) referencing future periods
CONSEQUENCEFuture period references in PIT cause ValueError and break point-in-time data integrity, leading to look-ahead bias in backtests
常见问题
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更新历史
v0.1.0: 首次发布到 Doramagic.ai。基于 microsoft/qlib 的 AI 量化平台,双语元数据 + 47 条 anti-pattern 约束(均有 GitHub issue 来源)+ 3 条 FAQ。