{"coeffs": [-9.282827278352847e-08, 1.0729406572278256e-08, -0.2705164589773712, 0.010252880375613137], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.960484770565283e-08, 1.8704974537082793e-08, 0.049024798940112704, 0.04147864949275598], "covariance": [[8.764470076748976e-16, -8.342449537008373e-18, 5.258268860972328e-10, -4.231610058777222e-10], [-8.342449537008375e-18, 3.4987607243291566e-16, 8.055145894375124e-11, 5.814997868615263e-11], [5.25826886097233e-10, 8.055145894375124e-11, 0.002403430911118476, -0.001382124177836503], [-4.231610058777223e-10, 5.814997868615262e-11, -0.001382124177836503, 0.0017204783637429061]]}