{"coeffs": [-1.8545950674117558e-06, 0.3160123133971797, 2.034926261858243, 0.18290388542938768], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [1.6900204130140942e-06, 98.91591022016154, 57.711664899865866, 0.018951064617842465], "covariance": [[2.8561689964043292e-12, -0.00013518795599600783, -7.890352283140316e-05, -2.8995578152744745e-08], [-0.00013518795598510384, 9784.357294683057, 5708.600760753723, 1.8169394980715787], [-7.890352282514243e-05, 5708.600760754198, 3330.63626551441, 1.060245118477695], [-2.8995578151603017e-08, 1.8169394981333644, 1.0602451185135564, 0.00035914285014964053]]}