{"coeffs": [-3.866859520977685e-05, 1.6551664937825095e-05, -0.6476901763694202, 0.745866330859075], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.493014549304925e-05, 5.661040729414942e-06, 1.6703879066844078, 0.567305197117793], "covariance": [[5.61452670360953e-09, -4.1894714390931277e-10, 0.00012516133725669863, -4.237835641082386e-05], [-4.189471439086142e-10, 3.204738214009486e-11, -9.338996284059787e-06, 3.2011989738169687e-06], [0.00012516133725669896, -9.338996284075383e-06, 2.7901957587975184, -0.944735629308679], [-4.2378356410789255e-05, 3.201198973819659e-06, -0.944735629307905, 0.32183518667685806]]}