{"coeffs": [-2.7932681124925236e-05, 1.7818059616878253e-08, -2.573109046369022, 0.35485473669081774], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [0.129074429751621, 1.3457877252375206e-08, 1648.1562012585007, 1.1300657904299027], "covariance": [[0.016660208415706142, -1.5472565172961311e-09, 212.7347110816048, -0.14246320472531326], [-1.547256517333472e-09, 1.8111446013999804e-16, -1.9766762001725763e-05, 1.4656596884026463e-08], [212.73471108161536, -1.9766762001245577e-05, 2716418.8637468517, -1819.5246770324325], [-0.14246320472684063, 1.4656596883845079e-08, -1819.5246770518452, 1.2770486906999607]]}