{"coeffs": [-2.5311132064984705e-06, 0.907889492260432, 2.1522246958414635, 0.1630596662826802], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [3.885875370813199e-06, 7337.879413707082, 1323.8036590781232, 0.07956328623561568], "covariance": [[1.5100027397492613e-11, -0.02187227541857759, -0.003946288180501737, -2.7037737564703526e-07], [-0.021872275414267613, 53844474.290106185, 9713911.513271337, 563.7738869178414], [-0.003946288179702571, 9713911.513271783, 1752456.127788628, 101.71267607218188], [-2.703773756206773e-07, 563.773886965248, 101.71267608077392, 0.00633031651661051]]}