{"coeffs": [-7.402929556244469e-09, -0.08266309492948513, 1.4207333418560812, 0.052305525047854726], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.3249355604386008e-07, 48307.54086085718, 30693.701388703634, 0.17545136359723298], "covariance": [[1.755454239314749e-14, -0.0038630164219131454, 0.002454513952209516, 1.6054823654489127e-08], [-0.003863016444511257, 2333618504.023386, -1482737233.8721118, -8297.147554250392], [0.0024545139665703842, -1482737233.871966, 942103304.9389074, 5271.865999789026], [1.6054823715303115e-08, -8297.147541585633, 5271.865991734372, 0.03078318098812845]]}