Results of the fitting procedure applied to each single spectrum contained in the dataset, described in the text, for the six galaxies shown in Figs. 7 and 15. Each panel shows the integrated spectrum of the corresponding galaxy (solid-black line) derived by coadding the spectra within a 30″ diameter aperture centered on the peak emission in the V-band. The green line shows the best-fit multi-SSP stellar population, while the red line shows the best model derived for the emission of ionized gas. The blue line is the residual from the fit.