{"coeffs": [-3.9077937529594804e-07, 7.301668924222355e-09, -0.3404672957200929, 0.061389249404411476], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0927447045279142e-07, 3.021386312470001e-08, 0.05650167607164212, 0.04453864732070781], "covariance": [[1.1940909892737984e-14, -7.108287667150892e-16, 4.945213595950703e-09, -3.6286340027761924e-09], [-7.108287667150897e-16, 9.128775249181072e-16, 1.0610764178663705e-10, 5.350973163952302e-10], [4.945213595950701e-09, 1.0610764178663736e-10, 0.003192439398904776, -0.001362304458345711], [-3.628634002776193e-09, 5.3509731639523e-10, -0.0013623044583457116, 0.001983691105158393]]}