{ "rows": 2000, "n_before": 1000, "n_after": 1000, "mean_before": 0.249929015, "mean_after": 0.911546609, "sd_before": 5.85209552399459e-06, "sd_after": 0.05998510583676891, "mean_difference": 0.661617594, "t": 348.78967002529595, "degrees_freedom": 999.0000190165372, "pooled_sd": 0.042415875309224665, "cohens_d": 15.59834824052565, "after_min": 0.635458, "after_max": 0.965283, "after_flag1": 1000, "after_below_0_9": 118, "matches_in_long_numeric": 2000, "time_min": "2026-01-07T02:50:00", "time_max": "2026-01-07T16:11:29", "before_last_timestamp": "2026-01-07T15:45:12", "after_first_timestamp": "2026-01-07T15:45:16" }