Percentage of outliers (top) along with non-reduced (middle) and reduced (bottom) RMS error σ_{Δz/ (1 + z)} in the photo-z estimation with the inclusion of different bands and morphological parameters in the COSMOS field data set discussed in Sect. 4 as determined with SPIDERz. The uncertainties represent the standard deviation of the values obtained from different realizations featuring different random compositions of the training and evaluation sets, as discussed in Sect. 4.2. Results are shown for the five-band case, the cases of five photometric bands plus each individual morphological parameter, the case of five photometric bands plus all morphological parameters, and the ten photometric band case.