{"coeffs": [-1.9005267648573402e-08, 0.25010954161142396, 1.2801894078870681, 0.06567056369378756], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.9022489294171803e-08, 460.8256158128703, 121.37166927280212, 0.003431204642225734], "covariance": [[8.423048848303169e-16, -5.405830801021503e-06, -1.4239041781682408e-06, -5.12030123126069e-11], [-5.405830809140696e-06, 212360.24818931113, 55931.174044164756, 1.5136246980731056], [-1.4239041803630908e-06, 55931.174044158266, 14731.082102066459, 0.3986664972292653], [-5.120301235530003e-11, 1.5136246974293621, 0.39866649705979057, 1.177316529683143e-05]]}