{"coeffs": [-1.1813222772123e-06, 0.00010004164120317122, 0.47851667063828884, 0.14123946898919995], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.0869210242569867e-07, 1.2175356418307176e-06, 0.003427281596531881, 0.0020330907353120573], "covariance": [[4.355239361485831e-14, -1.8036023373560326e-13, -4.2725456042460716e-10, -3.650627246100705e-10], [-1.8036023373560315e-13, 1.4823930391281375e-12, 4.0974140016224766e-09, 2.3089887226520515e-09], [-4.2725456042460716e-10, 4.097414001622477e-09, 1.174625914192612e-05, 6.164121542842149e-06], [-3.6506272461007054e-10, 2.3089887226520523e-09, 6.164121542842148e-06, 4.133457938011722e-06]]}