Comparison of the best-fitting Schechter parameters between cluster and field, when the galaxy population is divided between different galaxy types. Black contours: 1- and 2-σ uncertainties corresponding to the main analysis. Grey: robustness tests based on different initial photometric selection of cluster members. Red dots: results based on cluster bootstrap samples, where clusters are drawn with replacement. Purple contours: 1- and 2-σ uncertainties for the co-eval reference field.