Spectra from individual spaxels at different annuli (for MaNGA plate-IFU: 8950-1901). The top plot illustrates the optical classification map based on the [N II] BPT diagram following Kewley et al. (2006). The black ellipses display annuli spaced at 0.5 R_eff. The four subsequent rows represent, at different annuli (as in Figure 5), the distribution of the [N II] BPT diagram and spectra zoomed into two spectral regions containing the lines responsible for the classification. The exact spaxel where the spectra is taken from at each annuli is marked in the top panel (using a square for the blue spectra, and a circle for the red ones). The red spectra is offset in the y-axis.