{"coeffs": [-1.8211575441456127e-07, 6.185031683285524e-08, -0.22758459297672448, 0.031344990494846146], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.099552744402109e-08, 3.3767022878591033e-08, 0.047386624237539435, 0.04107707225873093], "covariance": [[2.600543819293908e-15, -1.1234730741685801e-16, 9.594765671208803e-10, -8.099823662711268e-10], [-1.1234730741685806e-16, 1.1402118340832905e-15, 3.96302632060143e-10, 3.739821271517284e-10], [9.594765671208801e-10, 3.96302632060143e-10, 0.00224549215662976, -0.00016794384610304807], [-8.099823662711269e-10, 3.739821271517284e-10, -0.0001679438461030481, 0.0016873258653490025]]}