VAR 分析
确认多个同步时间序列、频率和滞后范围,检查平稳性与样本长度。报告滞后选择、预测表现和动态响应;将格兰杰关系表述为预测信息而非因果证明。
Tool routing
- Use
get_schemato identify multiple time-aligned target series, the time column, and source table. - Use
query_dataonly to verify frequency alignment, missing periods, stationarity preparation needs, and sample length. - Use
run_analysiswithanalysis_name="Time_Series_VAR"for the actual VAR computation. - Use
generate_charton forecast, lag, or response result tables afterrun_analysissucceeds.
Implementation reference
- Tool entry:
agent/tools/business/data.py::_tool_run_analysis - Analysis registry:
Function/Analyze/registry.py - Analysis implementation:
Function/Analyze/Time_Series_VAR/analyze.py - Chart implementation:
Function/Charts_generation/chart_generate.py