{"coeffs": [-1.5978656536227968e-08, 0.032151533252591756, 1.2678661455558453, 0.0692544038845452], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.607384520036544e-08, 408.4312656432921, 877.6495144267407, 0.029312443466220188], "covariance": [[1.3013223075399288e-15, -5.9148376077415395e-06, -1.271128453972235e-05, -5.41967179982134e-10], [-5.914837608873522e-06, 166816.09875498142, 358459.5002748656, 11.447675846681372], [-1.271128454189251e-05, 358459.5002748608, 770268.6701734937, 24.599844881349583], [-5.419671800383852e-10, 11.447675846194198, 24.599844880309107, 0.0008592193419603546]]}