{"coeffs": [-2.2147958097161493e-07, -1.5082323523219712e-08, -0.32030978255231946, 0.008967575717630061], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.790219692465472e-08, 5.446209875492662e-08, 0.08405430350962072, 0.0529360615742092], "covariance": [[9.584840162673874e-15, -3.766659649852755e-17, 1.425547908771709e-09, -5.451413349049212e-10], [-3.7666596498527467e-17, 2.9661202007913795e-15, 1.0301766971541782e-09, 6.291519952826152e-10], [1.4255479087717093e-09, 1.0301766971541782e-09, 0.007065125938487437, 0.003044127866800743], [-5.451413349049212e-10, 6.291519952826152e-10, 0.003044127866800743, 0.002802226614988468]]}