{"coeffs": [-1.6471867192039724e-05, 0.0001358299148423687, 0.3886752860466512, 0.22338640727734138], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [5.0327008061630435e-06, 1.0601370973049543e-05, 0.0219022871026269, 0.02587194636550684], "covariance": [[2.532807740435415e-11, -4.641753938257913e-11, -6.697847497010717e-08, -1.247741925081198e-07], [-4.6417539382579287e-11, 1.1238906650821743e-10, 2.129592525438385e-07, 2.646189910779891e-07], [-6.697847497010767e-08, 2.1295925254383905e-07, 0.0004797101803258966, 0.0004501565644738524], [-1.2477419250812e-07, 2.646189910779887e-07, 0.0004501565644738503, 0.0006693576087396626]]}