{"coeffs": [-4.0472911390731645e-07, 6.03559855902874e-06, 0.5762562747182705, 0.12009412291062799], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.656924713322816e-07, 7.15342313147372e-07, 0.02776451866474787, 0.02509168876430189], "covariance": [[7.059248932265529e-14, -1.255301387674715e-13, -2.354064458645488e-09, -5.6165787692763e-09], [-1.2553013876747147e-13, 5.117146249790328e-13, 1.780849673380727e-08, 1.6227190874249437e-08], [-2.354064458645489e-09, 1.7808496733807273e-08, 0.0007708684966851329, 0.00048673400237642914], [-5.6165787692763e-09, 1.6227190874249437e-08, 0.00048673400237642914, 0.0006295928450445938]]}