Best model fits for RAVE J1830−4555, ordered by increasing median residuals. The left panel shows the observed [X/H] abundance ratios (red filled circles), along with the yields (solid lines) from the S4 models described in Heger & Woosley (2010). The masses and explosion energies are provided in the legend at the upper right, color-coded by their fractional occurrence. The right panel shows the distribution of the residuals (in dex) for the 10,000 simulations (see text for details). The colored bar overlaying the upper density distribution in the right panel marks the median value, shown in the legend at the top right, along with the median absolute deviation (MAD).