{"coeffs": [-2.338314649278418e-06, -2.4070772763636834e-07, -0.2494135139620534, 0.0761690436967462], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.669278062700359e-07, 1.1535027269785988e-07, 0.06669652563972728, 0.04412113853415165], "covariance": [[4.447926987761625e-13, -2.2744066134713688e-14, 4.080195344919066e-08, -2.4481203512612972e-08], [-2.2744066134713704e-14, 1.3305685411470638e-14, -8.057473546392617e-10, 2.379966271793812e-09], [4.080195344919066e-08, -8.05747354639261e-10, 0.004448426532410798, -0.0021512810852659], [-2.4481203512612965e-08, 2.3799662717938108e-09, -0.0021512810852658995, 0.0019466748655498018]]}