{"coeffs": [2.5627780177832012e-08, 2.9283438277092526e-07, 0.3733486873178168, 0.07305168531016902], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.5313946735692315e-09, 1.892765788212018e-08, 0.010880682272916123, 0.006884620100188531], "covariance": [[1.247074834051314e-17, -4.5335521986967416e-17, -2.0656634958038755e-11, -2.0224544969108535e-11], [-4.533552198696743e-17, 3.5825623290258625e-16, 2.00561266296774e-10, 1.2096389213248653e-10], [-2.0656634958038752e-11, 2.00561266296774e-10, 0.00011838924672415115, 6.484141476751818e-05], [-2.022454496910854e-11, 1.2096389213248653e-10, 6.484141476751818e-05, 4.739799392391994e-05]]}