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": -0.042851,7 "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 only 2010-01-04 to 2019-12-31; there are zero rows with post_cut = 1, so the post-cut mean change (and hence the effect) cannot be computed.",14 "data_issues": [15 {16 "issue": "first row has no preceding row, so no one-day change",17 "handling": "excluded from all change-based statistics (2497 changes from 2498 rows)"18 },19 {20 "issue": "file ends 2019-12-31 (README retrieval end_date=2019-12-31); post_cut=0 for all 2498 rows, so no observation on or after 2020-03-04 exists",21 "handling": "treated window empty; effect, interval, model RMSE and n_analysed set to null; post_cut not redefined and no external/proxy data substituted; conclusion premise_invalid"22 }23 ],24 "n_input_rows": {25 "gc5y_daily.csv": 249826 },27 "n_analysed": null,28 "random_seed": null29}