{"coeffs": [-1.1862914347571096e-06, 0.2036708676786886, 1.9159502019414711, 0.161031038501295], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [5.063802886315268e-07, 65.32876753739555, 52.004390822710846, 0.01198813571259787], "covariance": [[2.5642099671454837e-13, -2.520880125339888e-05, -2.007367205997101e-05, -5.285379599390549e-09], [-2.520880125624377e-05, 4267.847867955066, 3397.382359671016, 0.7559444385986641], [-2.0073672062207842e-05, 3397.382359670748, 2704.456664841252, 0.6018417608978497], [-5.2853795997018734e-09, 0.7559444385652491, 0.6018417608712655, 0.00014371539786366445]]}