Relation between Δ[12+log(O/H)] and sSFR and M_*. Each red dot represents the median value of a galaxy, whose error bar indicates the 32% and 68% quantiles of the distribution of all Voronoi bins of the galaxy. The gray dots in the lower panel represent Voronoi bins, and the error bar in the upper right corner indicates the uncertainty on each axis. The horizontal dashed gray line represents the average value of the uncertainty of our measured metallicity. The upper left corner is the Pearson correlation coefficient.