{"coeffs": [-6.848920326422725e-07, -1.308011566931859e-08, -0.34399933157020257, 0.01324081741605007], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.6295082408364001e-07, 7.785691739091248e-08, 0.031717844293015704, 0.025709728184066322], "covariance": [[2.655297106953739e-14, -2.922687833813444e-16, 2.095678026013979e-09, -1.5982074255156212e-09], [-2.922687833813445e-16, 6.06169958561537e-15, 2.982042202269834e-10, 2.1999984434896e-10], [2.095678026013979e-09, 2.9820422022698347e-10, 0.001006021646595989, -0.00033083660460891544], [-1.5982074255156214e-09, 2.1999984434896e-10, -0.00033083660460891544, 0.0006609901232985742]]}