Stability of claims

granger_test reports the nested-regression F statistic and residual sums of squares for one configured lag order. pearson_independence reports a correlation diagnostic. Re-run those diagnostics across plausible preprocessing choices, sampling windows, and lag settings before relying on predictive structure.

Neither utility supplies p-values, multiple-testing correction, stationarity tests, bootstrap inference, or a causal effect estimate. Report the raw setup and diagnostics instead of reducing them to a causal label.