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": -0.04285142170604726,7 "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 contains no rows with post_cut = 1 (sample 2010-01-04 to 2019-12-31, ending before the 2020-03-04 cut), so the post-cut mean change and the 120-day pre-window anchored at the first flagged day cannot be computed.",14 "data_issues": [15 {16 "issue": "No rows with post_cut = 1: the file covers 2010-01-04 to 2019-12-31 (README retrieval used end_date=2019-12-31), entirely before the 2020-03-04 cut; post_cut is 0 for all rows.",17 "handling": "Estimand not computable (no treated window, and the 120-day pre-window is defined relative to the first flagged day, which does not exist). post_cut not redefined; no proxy estimate substituted; effect keys set to null, conclusion premise_invalid."18 }19 ],20 "n_input_rows": {21 "gc5y_daily.csv": 249822 },23 "n_analysed": null,24 "random_seed": null,25 "baseline_n_changes": 249726}