{"coeffs": [-1.6470469661440667e-06, 6.920026396389385e-05, 0.4003634402493318, 0.14959627569632625], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.0144636647550653e-07, 8.665446502030554e-07, 0.0036563460126757276, 0.0025569646258710786], "covariance": [[4.0580638566184083e-14, -1.243144292388096e-13, -4.0146142965188604e-10, -4.4665132065528725e-10], [-1.2431442923880963e-13, 7.508996307955355e-13, 3.0638087827349403e-09, 2.05731077279141e-09], [-4.014614296518861e-10, 3.0638087827349395e-09, 1.3368866164409692e-05, 7.906898573347039e-06], [-4.4665132065528725e-10, 2.05731077279141e-09, 7.906898573347039e-06, 6.538068097956025e-06]]}