Accuracy of each of the supervised machine learning methods to determine the morphological type of galaxies from the SDSS at z < 0.1 as a function of redshift (late type, blue; early type, red; averaged accuracy, green). Left panel: uniform binning by redshift (EZ) with δz = 0.008; right panel: each bin contains the same number of galaxies (EN). Only the tops of the histograms are shown.