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sanguo_vnpy_v2/sanguo_factor
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[vps] fix(factor): zscore_cross 吞 inf——alpha83 部分日 ±inf 毁整行 z(首跑实证) [no-doc]
真数据首跑 nan_exposure_holding_share=0.647 根因: alpha83 表达式
部分交易日产出 ±inf(260~920 股/日), pandas std 不跳 inf → 整行
4800+ 股 z 全 NaN → 持仓 ANY-miss 全中(12 源任一缺即记)。修=
zscore_cross 首行 replace(±inf→NaN)(inf 暴露=缺失口径), 其余
~4400 股正常 z 化。alpha16 零星 2/200 为普通数据缺失(披露口径)。

Co-Authored-By: Claude Code <noreply@anthropic.com>
2026-09-26 15:16:09 +08:00
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