Mean spectra (black) of the classes obtained on the first bin at z = 0.41. The dispersion (10% and 90% quantiles) are shown in grey, and the masks are in red. Each panel shows one class, and the label is displayed in the top-left corner and size in the top right. The letter in the class label corresponds to the first run of the algorithm on this bin, and the number corresponds to the sub-classification of these main classes.