{"coeffs": [-4.7398186551386514e-07, -1.3279075525958554e-09, -0.34182832467457297, 0.033552090473339985], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.575486949626114e-08, 3.5271613864884126e-08, 0.03171000978962625, 0.02719652740000016], "covariance": [[7.353897642320779e-15, -2.7377795821405323e-16, 1.503069854121754e-09, -1.2347010734938137e-09], [-2.7377795821405323e-16, 1.244086744633486e-15, 2.0660982534407634e-10, 2.496369739468975e-10], [1.5030698541217542e-09, 2.0660982534407634e-10, 0.0010055247208581928, -0.00020913945012381615], [-1.2347010734938137e-09, 2.496369739468975e-10, -0.00020913945012381615, 0.0007396511026189594]]}