{"coeffs": [-4.988614355515053e-07, 2.9795158985742293e-09, -0.3204203571729097, 0.0323647554692656], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.853989016342823e-08, 3.0800782926831474e-08, 0.02471423723467399, 0.021271263240049413], "covariance": [[4.697716543614806e-15, -1.7359577389949335e-16, 8.734518497520499e-10, -7.21761785706562e-10], [-1.7359577389949348e-16, 9.486882289057933e-16, 1.5003497786310385e-10, 1.6794120020612181e-10], [8.734518497520499e-10, 1.5003497786310385e-10, 0.0006107935220917462, -0.00010663223953653657], [-7.217617857065621e-10, 1.6794120020612176e-10, -0.0001066322395365366, 0.0004524666398274775]]}