has part
categorical measurement datum
categorical variable
Alejandra Gonzalez-Beltran
Philippe Rocca-Serra
qualitative factor
Orlaith Burke
https://onlinecourses.science.psu.edu/stat503/node/7
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
discrete variable
http://udel.edu/~mcdonald/statvartypes.html
nominal variable
variable
ready for release