{"coeffs": [-3.8102166746469567e-06, 0.3251670838842121, 2.1343111696490125, 0.19783920565751856], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [1.9301119217030876e-06, 85.69077448494146, 52.742427007957545, 0.019415527758188365], "covariance": [[3.7253320303003866e-12, -0.00013789254778282932, -8.490366067549459e-05, -3.456782939676181e-08], [-0.00013789254777083016, 7342.908831829093, 4519.538439818438, 1.616819540226173], [-8.49036606682091e-05, 4519.538439818895, 2781.76360668973, 0.9953063220877841], [-3.456782939530188e-08, 1.6168195402863972, 0.9953063221246927, 0.0003769627181289829]]}