{"coeffs": [-9.297687552528793e-08, 2.0419953575054497e-09, -0.31183661799297796, 0.017279475115818576], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.486116591145021e-08, 7.97888654996325e-09, 0.023875970122610536, 0.01836586961535359], "covariance": [[2.208542522476497e-16, -3.0803334861574208e-18, 1.2629140749541132e-10, -8.504178509188966e-11], [-3.0803334861574227e-18, 6.366263057718444e-17, 3.438209724868671e-11, 2.45717871685645e-11], [1.2629140749541132e-10, 3.438209724868672e-11, 0.000570061949295791, -4.1168156750892766e-05], [-8.504178509188967e-11, 2.4571787168564497e-11, -4.1168156750892766e-05, 0.00033730516672816826]]}