{"coeffs": [-4.0219568519260794e-07, -1.522304920086617e-08, -0.30462603661286586, 0.0370643852067704], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.143881633652062e-08, 2.3749908073551184e-08, 0.026250561048094218, 0.022605194859469453], "covariance": [[2.6459518261023006e-15, -1.1785822886085587e-16, 7.244813596629611e-10, -6.05116764006659e-10], [-1.1785822886085582e-16, 5.640581335021318e-16, 1.2825008872046958e-10, 1.5140562830345716e-10], [7.244813596629611e-10, 1.2825008872046955e-10, 0.0006890919553397215, -0.00012985865816895754], [-6.05116764006659e-10, 1.5140562830345719e-10, -0.00012985865816895752, 0.0005109948346345842]]}