Fit performed using the EWComputation module to the blended lines Fe I 6297.80 Å and Fe II 6516.08 Å, from the giant star HIP9313 taken with CHIRON. The right-most text contains the values of A, μ, and σ, the amplitude, mean, and standard deviation, respectively, of the best Gaussian fit, along with their corresponding uncertainties e_A, e_μ, and e_σ. The grey lines are the absorption lines detected in the spectral range, and the green line the global fit to the data. The red region corresponds to the fit of the line, l, with its uncertainty, derived using the Gaussian parameters plus their uncertainties. The green block represents the equivalent width, quoted in the left-most text. The full procedure is explained in Appendix A.