1{2 "task_id": "F6-conf-02",3 "sample_start": "2010-01-04",4 "sample_end": "2019-12-31",5 "n_treated": 0,6 "baseline_metric": -0.042851421706047235,7 "model_metric": null,8 "effect_estimate": null,9 "effect_ci_low": null,10 "effect_ci_high": null,11 "conclusion": "premise_invalid",12 "feasibility": "infeasible",13 "feasibility_reason": "The file covers 2010-01-04 to 2019-12-31 and contains no rows with post_cut = 1 (the cut was announced 2020-03-04, after the last date). The post-cut mean change, and hence the effect, its interval and the two-window model RMSE, cannot be computed. No proxy estimate is substituted.",14 "data_issues": [15 {16 "issue": "Sample ends 2019-12-31, before the 2020-03-04 cut; n_treated = 0 (all 2498 rows have post_cut = 0). The README retrieval URL requests end_date=2019-12-31, consistent with this truncation.",17 "handling": "Estimand declared not estimable: effect_estimate, CI, model_metric, n_analysed set to null; conclusion premise_invalid."18 }19 ],20 "n_input_rows": {21 "gc5y_daily.csv": 249822 },23 "n_analysed": null,24 "random_seed": null25}