{"coeffs": [-2.702890909200214e-07, 0.47244656195340395, 1.967216382045316, 0.16431411712190297], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [9.02147537042319e-07, 153.67087585100558, 53.77741696165753, 0.010721275617212847], "covariance": [[8.138701785915224e-13, -0.00010674395752297953, -3.736553170063822e-05, -8.48022693741035e-09], [-0.00010674395755718615, 23614.73808481517, 8264.022026137372, 1.5913305518179448], [-3.736553171270763e-05, 8264.022026135688, 2892.010575067971, 0.5569522151654394], [-8.480226938794774e-09, 1.5913305516122151, 0.5569522150934887, 0.00011494575086024272]]}