dfkai

根据策略描述、研报 PDF 或截图，解读因子/选股逻辑，基于 scripts/daily-factors-backtest.py 框架生成 QMT 内置日频因子回测脚本。用户提到 QMT 内置回测、因子选股回测、截面因子、 研报复现、handlebar 回测、after_init 预计算信号时使用。

Use to compete in the WorldQuant BRAIN Challenge and climb to GOLD (10000) with AI assistance: sign-up, discovering accessible fields/operators via API, constructing alpha factors (fundamental x analyst-expectation x long-window, rank blends), passing…