{"coeffs": [-3.133457642511762e-08, 2.1899276620688516e-07, 0.7046243932464299, 0.3674294157874186], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.4728998330400837e-08, 1.6440687596971992e-07, 0.40079588471114735, 0.20203102916042598], "covariance": [[6.115233584249673e-16, -3.8645175574808646e-15, -9.291002442788092e-09, -4.924541409761866e-09], [-3.86451755748096e-15, 2.7029620866122865e-14, 6.583162710478954e-08, 3.281151227820485e-08], [-9.291002442788355e-09, 6.583162710478972e-08, 0.1606373412013913, 0.07948283350984739], [-4.924541409761925e-09, 3.281151227820444e-08, 0.07948283350984618, 0.04081653674362089]]}