{"coeffs": [-7.896117294615915e-06, 9.340478663527346e-05, 0.5553964450527457, 0.2542705479893963], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.032030197529566e-06, 1.2562940467466232e-05, 0.05457311294945735, 0.02944553414797479], "covariance": [[4.129146723672048e-12, -2.290405893517047e-11, -9.571434839636328e-08, -5.77986132889597e-08], [-2.2904058935170473e-11, 1.578274731891007e-10, 6.833566989836742e-07, 3.606798698369025e-07], [-9.571434839636331e-08, 6.833566989836742e-07, 0.0029782246569942297, 0.0015417279721944893], [-5.7798613288959744e-08, 3.606798698369025e-07, 0.0015417279721944893, 0.0008670394812595495]]}