categorical data

https://doi.org/10.1351/goldbook.10045
Data, values of which are one of a fixed number of nominal categories.
Note: Data in a contingency table are categorical.
Source:
PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 409 (https://doi.org/10.1515/pac-2015-0605)