categorical variable categoricalVariable A categorical variable is a variable which that can only assume a finite number of value and cast observation in a small number of categories Alejandra Gonzalez-Beltran Philippe Rocca-Serra qualitative factor Orlaith Burke discrete variable http://purl.obolibrary.org/obo/stato.owl http://udel.edu/~mcdonald/statvartypes.html https://onlinecourses.science.psu.edu/stat503/node/7 nominal variable variable ready for release