本内容遵循CC 4.0 BY-SA版权协议 在量化交易数据分析中，历史行情计算后易丢失原始标的标识（如600519.SH），导致结果无法追溯来源。本文基于QuantDash Python SDK与Pandas，提出从数据接入阶段即显式创建original_symbol字段，并在收益率计算、指标生成及导出全流程中 ...
TOUCHGAL_API_TOKEN 可选 TouchGal 官方元数据 API token（tgal_live_...）。主站已整站开启 Cloudflare 质询，无法直接抓取，需在 developer.touchgal.com申请、审核通过后创建 token。未配置时 TouchGal 平台会自动跳过（不报错），配置后即可恢复搜索。 CHARLOTTE_BASE_URL 可选 ...
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