{"coeffs": [-1.451303995893461e-07, -7.395766676484865e-09, -0.16907484165351533, 0.040038428025689146], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.652086186385391e-08, 2.069697323130172e-08, 0.053703977708226505, 0.046767626594751054], "covariance": [[7.033561140016209e-16, -4.78333595930823e-17, 5.714774270676748e-10, -5.07403092458376e-10], [-4.78333595930823e-17, 4.283647009372199e-16, 3.318221801229605e-10, 3.2198245791045777e-10], [5.714774270676748e-10, 3.318221801229605e-10, 0.0028841172216856896, -0.00016133744826003158], [-5.07403092458376e-10, 3.219824579104577e-10, -0.00016133744826003164, 0.002187210897306066]]}