{"coeffs": [-8.156139310018897e-07, -2.1458893377644262e-08, -0.2720800949083671, 0.06786817668204838], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.862078404557498e-08, 2.7434697568124125e-08, 0.021624724547980947, 0.01833169065289861], "covariance": [[4.708812003029438e-15, -4.253520619375757e-16, 1.0647921860524284e-09, -8.845512375423047e-10], [-4.253520619375757e-16, 7.526626306544359e-16, 8.65300705523873e-11, 2.2302718300083391e-10], [1.0647921860524284e-09, 8.653007055238728e-11, 0.00046762871177604976, -0.00016387314862564213], [-8.845512375423047e-10, 2.2302718300083391e-10, -0.0001638731486256421, 0.0003360508821935703]]}