regression

# 线性回归 确认连续目标、解释变量和分析口径，检查缺失、异常、共线性与残差假设。报告拟合与验证指标、系数方向和不确定性；明确相关关系不等于因果关系。 ## Tool routing 1. Use `get_schema` to identify the continuous target, candidate predictors, and source table. 2. Use `query_data` to verify field names, missingness, outliers, and whether the target is numeric. 3. Use `run_analysis` with `analysis_name="Regression"` for the actual regression computation. 4. Use `generate_chart` on coefficient, residual, or prediction result tables after `run_analysis` succeeds. ## Implementation reference - Tool entry: `agent/tools/business/data.py::_tool_run_analysis` - Analysis registry: `Function/Analyze/registry.py` - Analysis implementation: `Function/Analyze/Regression/analyze.py` - Chart implementation: `Function/Charts_generation/chart_generate.py`