Spatial distribution of the SNR for the same two examples as in Figs. 2 and 3. The colourbar is set for those spaxels with S/N≥10. Those spaxels with 3≤S/N< 10 are shown in yellow to highlight the number of spaxels that would be missed when applying a threshold of S/N≥10 rather than S/N≥3 to ensure the goodness of the fit. The shaded dark spaxels represent the extension of the AGN outflow in each galaxy.