{"coeffs": [-2.987403863267707e-07, -1.0950144530311415e-08, -0.12474737215442688, 0.05199392370057248], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.774926973989117e-08, 3.4548478724703674e-08, 0.04439692215837338, 0.03905824417073915], "covariance": [[1.4250073658950632e-15, -1.6545794446061639e-16, 6.821414531645166e-10, -6.654009118134855e-10], [-1.6545794446061634e-16, 1.1935973821913023e-15, 5.571856883594318e-10, 5.700028503352455e-10], [6.821414531645169e-10, 5.571856883594315e-10, 0.0019710866971366656, -5.140518504114982e-05], [-6.654009118134855e-10, 5.700028503352456e-10, -5.140518504114969e-05, 0.0015255464377010787]]}