{"coeffs": [-4.5633578237300517e-08, 0.10580801860485185, 1.3468817858346023, 0.07418413766952266], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.108866088068858e-08, 185.36560194435344, 130.41826618996308, 0.0047458619875615626], "covariance": [[4.447316177406848e-16, -1.7184723807598736e-06, -1.2092009246508586e-06, -5.571630610032129e-11], [-1.7184723819810675e-06, 34360.40638419249, 24175.06028203672, 0.8407654299933175], [-1.2092009255185981e-06, 24175.060282034938, 17008.924155996065, 0.5915592189892506], [-5.571630612080286e-11, 0.840765429812664, 0.5915592188620459, 2.2523206004981788e-05]]}