Feature importance ranking corresponding to the LS where: only sAGN1 are included (top panels); spectroscopic AGN (i.e., sAGN1 plus sAGN2) are included (center); all AGN types are included (bottom). Left panels: correspond to the feature set consisting of variability features plus optical and NIR colors plus stellarity index; right panels correspond to the same set plus the MIR color 4.5 − 3.6 μm (labeled as ch21), and the names of the AGN LS identifying these three classifiers are marked by a star. Each plot includes error bars for each feature (small vertical black bars at the right end of each feature bar): these are defined as the standard deviation of the importance of each specific feature over the total number of trees in the forest. The standard deviation depends on how important a feature is for the various trees, therefore larger error bars indicate that the feature importance varies considerably depending on the tree.