{"coeffs": [-2.6999581203339034e-05, 8.422947196008051e-07, -0.3643941092628962, 0.1576627121595747], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1394362926291523e-05, 5.447006250491124e-07, 0.1263305703889254, 0.042358182221740856], "covariance": [[1.298315064960467e-10, -3.971076463047959e-12, 1.434289998373538e-06, -4.523096631707107e-07], [-3.971076463047983e-12, 2.966987709288938e-13, -4.274393863246395e-08, 1.8192080292953923e-08], [1.434289998373538e-06, -4.274393863246357e-08, 0.015959413014791236, -0.005034778299005956], [-4.5230966317071197e-07, 1.8192080292953774e-08, -0.0050347782990059695, 0.0017942156011302032]]}