{"coeffs": [-1.8033267393792008e-06, 1.7464600117315648e-05, 0.3737951512943344, 0.14796873504976762], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.006849920531225e-07, 2.0375308800811946e-06, 0.02440722229253224, 0.01972606329006283], "covariance": [[3.608224596778599e-13, -1.1137393516319263e-12, -1.213717873198343e-08, -1.1510910802318233e-08], [-1.113739351631937e-12, 4.151532087284447e-12, 4.898887352018979e-08, 3.92824991927849e-08], [-1.2137178731983604e-08, 4.898887352018998e-08, 0.0005957125000370828, 0.0004486106799815849], [-1.1510910802318289e-08, 3.928249919278474e-08, 0.0004486106799815812, 0.0003891175729235644]]}