{"coeffs": [-6.929768186524492e-08, -6.396696265570311e-09, -0.10339188339316778, 0.04911579063389809], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.2463457006148865e-08, 3.1272918845116534e-08, 0.1754026144623195, 0.153763905546549], "covariance": [[1.053876040790076e-15, -1.173498675325736e-16, 2.1943803240135864e-09, -2.1227889041060856e-09], [-1.1734986753257367e-16, 9.779954530932446e-16, 2.0161651509797857e-09, 1.9861440699734372e-09], [2.1943803240135864e-09, 2.0161651509797857e-09, 0.030766077160217096, -0.0003255527968122402], [-2.122788904106086e-09, 1.9861440699734372e-09, -0.0003255527968122402, 0.023643338648928047]]}