{"coeffs": [-8.633721918682504e-08, 2.724375799208648e-05, 0.6229102437922558, 0.13635799488722272], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.9902150931960425e-08, 1.9000122509559501e-06, 0.016899611973764973, 0.003996740367237892], "covariance": [[1.5921816489969502e-15, -5.0391748748717043e-14, -4.528652535325474e-10, -1.2790720303876147e-10], [-5.039174874871729e-14, 3.6100465537826965e-12, 3.2045904881269057e-08, 7.19170725917649e-09], [-4.5286525353254883e-10, 3.204590488126904e-08, 0.00028559688486382045, 6.476481915256764e-05], [-1.2790720303876145e-10, 7.1917072591764755e-09, 6.476481915256755e-05, 1.5973933563108886e-05]]}