{"coeffs": [-9.515511299010833e-07, -2.4336851462015008e-08, -0.1103020558417032, 0.044967325412051624], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.786133250922923e-08, 6.396899390770054e-08, 0.023726962573682165, 0.02073505009117553], "covariance": [[4.605160449928173e-15, -4.3777926989693795e-16, 6.061089763496017e-10, -5.682287225665198e-10], [-4.3777926989693776e-16, 4.092032181563429e-15, 5.315205043483086e-10, 5.107137743007053e-10], [6.061089763496016e-10, 5.315205043483086e-10, 0.0005629687529729142, -8.37136040286857e-06], [-5.682287225665196e-10, 5.107137743007053e-10, -8.371360402868558e-06, 0.0004299423022835583]]}