{"coeffs": [-5.4190661141569205e-06, 0.07935007421888607, 3.3669251276906063, 0.36685972584483284], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [1.6806053983033163e-06, 24.01169230285462, 111.52258932457158, 0.06330657872015065], "covariance": [[2.8244345048062486e-12, -3.827694695167029e-05, -0.00017781239865727612, -1.0465458599449279e-07], [-3.827694693846526e-05, 576.5613672469678, 2677.84559807461, 1.5027435505184499], [-0.0001778123985960025, 2677.8455980763547, 12437.287929657048, 6.980159688852473], [-1.0465458597627123e-07, 1.5027435507625804, 6.980159689981647, 0.0040077229092506305]]}