{"coeffs": [-3.790759713924609e-07, -1.1610752366834045e-08, -0.27178004951313034, 0.03500207558810809], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.9425647329122203e-08, 1.0644670312336184e-08, 0.011257081785417122, 0.009735462388050637], "covariance": [[3.7735577415543255e-16, -1.698239386516655e-17, 1.0296957783066286e-10, -8.687625425975221e-11], [-1.6982393865166556e-17, 1.1330900605833132e-16, 2.753117958105683e-11, 2.8832077453793865e-11], [1.0296957783066286e-10, 2.7531179581056834e-11, 0.00012672189032356994, -1.6615690330899188e-05], [-8.687625425975221e-11, 2.8832077453793865e-11, -1.6615690330899184e-05, 9.477922790914861e-05]]}