{"coeffs": [-2.7958525854224742e-06, 2.4302612892356394e-06, -0.1450074434557935, 0.38398021652003367], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.467895676197866e-06, 2.39409608806991e-07, 0.306831277774432, 0.12115844286799449], "covariance": [[6.090509068596123e-12, -5.640060568741137e-13, 7.570733787920303e-07, -2.9571269646843927e-07], [-5.640060568740991e-13, 5.731696078911648e-14, -6.982255724498224e-08, 2.8624733617710725e-08], [7.570733787920314e-07, -6.982255724498413e-08, 0.09414543302069064, -0.03670713710043664], [-2.9571269646843614e-07, 2.8624733617711126e-08, -0.0367071371004362, 0.014679368278197085]]}