{"coeffs": [-2.2327182357753646e-06, 0.04133674925112267, 1.9020990953439059, 0.19452697779417258], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [6.08069582143351e-07, 3.320079289514771, 15.825311497974203, 0.016614601357866396], "covariance": [[3.697486167279895e-13, -1.6728156611783604e-06, -7.980888707949684e-06, -9.28492951213612e-09], [-1.6728156612041106e-06, 11.022926488664906, 52.54121898876837, 0.05357606853410201], [-7.980888708067537e-06, 52.541218988766126, 250.4404840079145, 0.2554744566677624], [-9.284929512204513e-09, 0.053576068533757376, 0.2554744566661376, 0.00027604497828081587]]}