{"coeffs": [-4.450284275317802e-08, 0.23935490012222188, 1.232815299502854, 0.06123792312799644], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.312318543916599e-08, 350.06713015650416, 89.82333198805732, 0.002666788766944842], "covariance": [[5.34681704854058e-16, -3.1272122237862603e-06, -8.024803989070384e-07, -3.033595305916316e-11], [-3.127212225493997e-06, 122546.99561601083, 31444.195936348347, 0.8947412225409671], [-8.024803993758794e-07, 31444.195936347034, 8068.230969436762, 0.22958645460401633], [-3.033595306730295e-11, 0.8947412224092948, 0.22958645457017174, 7.1117623275031914e-06]]}