{"coeffs": [-1.7949090615295441e-06, 0.3249527748695852, 1.999076399612232, 0.1828467268959702], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [2.940355082256062e-06, 116.61615460109547, 66.24961572101851, 0.026417040825065474], "covariance": [[8.645688009749053e-12, -0.00027725446842747487, -0.0001575772869024757, -7.03153454234962e-08], [-0.00027725446844644597, 13599.327513946602, 7725.773337040802, 2.9859299690168863], [-0.00015757728691365394, 7725.773337040165, 4389.011583182623, 1.696622339269902], [-7.031534542592313e-08, 2.985929968931896, 1.6966223392216013, 0.0006978600459531759]]}