{"coeffs": [-5.871195947534348e-06, 0.003006378744736193, 2.626500166107689, 0.4389311647138603], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [2.157422350819741e-06, 0.07324487002880997, 11.349436389318488, 0.12271924125181652], "covariance": [[4.654471199816577e-12, -1.522812547300649e-07, -2.3632455333874714e-05, -2.6190703674400784e-07], [-1.522812547319309e-07, 0.005364810985537266, 0.8312740124499916, 0.00891336080154774], [-2.363245533415743e-05, 0.8312740124497764, 128.80970635518665, 1.3821609855241153], [-2.619070367456252e-07, 0.008913360801495726, 1.3821609855164134, 0.015060012173421546]]}