What is the difference between nominal and categorical?

Hi!

Does anybody here know the difference between nominal and categorical or is it the same ?

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/stats/nominal-and-ordinal-arrays.html

nominal is older, Statistics and Machine Learning Toolbox, and is not recommended.

categorical() is now basic MATLAB, and is supported by a number of functions, including being able to use them as plot axes, and being able to display them and import them

[Muazma Ali]

@Walter Roberson and what is the newer of ordinal then..?

[Walter Roberson]

https://www.mathworks.com/help/matlab/matlab_prog/ordinal-categorical-arrays.html