{"coeffs": [-7.486056720884548e-07, 0.25827328051633813, 2.138624462040965, 0.1769009813584957], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [4.044471512116634e-07, 134.42936273254293, 92.90484975238262, 0.012955892756377442], "covariance": [[1.6357749812323012e-13, -4.334210620736182e-05, -2.99594510662789e-05, -4.700716884004383e-09], [-4.334210620951498e-05, 18071.253564677598, 12489.13919107055, 1.6862567481168524], [-2.9959451067784475e-05, 12489.13919107025, 8631.311107512787, 1.165470750042266], [-4.700716884115374e-09, 1.6862567480816153, 1.1654707500179615, 0.00016785515711475346]]}