{"coeffs": [0.02233530546517422, -3.471249317735296e-08, -1.921275250786675, 0.1383682859157795], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [10.38066846918448, 5.934300301125396e-08, 64.26598440355872, 0.044547126241471245], "covariance": [[107.75827786712084, 1.146503010644812e-07, -667.1073638395494, -0.04737580157426386], [1.146503010734822e-07, 3.5215920063936965e-15, -6.932356434388979e-07, -1.7206170024676844e-09], [-667.1073638394447, -6.93235643383272e-07, 4130.116751358453, 0.27327489752314477], [-0.047375801584521586, -1.720617002474775e-09, 0.273274897586685, 0.001984446456373576]]}