{"coeffs": [-1.3992578118949035e-06, 0.21652847557570273, 2.1420592327373287, 0.18568520753339662], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [5.378561813754275e-07, 77.73821618926536, 67.06092816408153, 0.013961587686423716], "covariance": [[2.8928927184375677e-13, -3.402163549220122e-05, -2.935596102576757e-05, -6.824793641723113e-09], [-3.402163549007845e-05, 6043.230256288958, 5213.19648403895, 1.0525066661214562], [-2.9355961023933785e-05, 5213.196484039184, 4497.168086228103, 0.9080401614611088], [-6.824793641505471e-09, 1.0525066661501037, 0.9080401614856753, 0.00019492593072569832]]}