{"coeffs": [-0.73217905218967, -0.004777573236919552, -0.09047845884983545, 0.05788286752443237], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.845580919314544e-08, 5.733309876496303e-08, 3.0943779807872624e-08, 2.7692515146042505e-08], "covariance": [[0.0017731087716585745, -0.00026676406294945436, 0.00036441567085943944, -0.00035195163999768823], [-0.00026676406294945425, 0.001243728516480477, 0.00023272331594487386, 0.00031170067020439875], [0.00036441567085943944, 0.00023272331594487386, 0.00036229428672741745, -2.7373665150712728e-05], [-0.00035195163999768823, 0.00031170067020439875, -2.7373665150712728e-05, 0.0002901613513368562]]}