{"coeffs": [-3.7377707513627906e-07, -3.552638124882804e-08, -0.14841931886620768, 0.04291593218305859], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.7750390736770436e-08, 4.926896207429974e-08, 0.051516383662468135, 0.04493916157476113], "covariance": [[3.335107630249661e-15, -2.7001047944051903e-16, 1.1660004923414164e-09, -1.062293335950887e-09], [-2.700104794405191e-16, 2.4274306238787864e-15, 8.214123234655061e-10, 7.959875192417582e-10], [1.1660004923414162e-09, 8.21412323465506e-10, 0.002653937785658614, -0.00010009906522223288], [-1.0622933359508873e-09, 7.959875192417582e-10, -0.00010009906522223288, 0.002019528243042487]]}