I just found this rare boxplot in the attachment. The help says that for each boxplot both whiskers should be of size 1.5 times the interquartile range, but I can see clearly that some of the lower whiskers are bigger than that ¿is it possible or is this a bug? -- Ignacio Díaz-Emparanza Vicedecano de Ordenación Académica y Postgrado Facultad de Economía y Empresa, UPV/EHU c/ Lehendakari Aguirre, 83 48015 Bilbao Tel(Decanato): 946013602 Tel(Despacho): 946013732