Modeling Type
How do you know when to use an ordinal modeling type versus a nominal type. For example, If I am using numbers to label a product, in JMP I would use that as a nominal type correct?Then if I have a certain sequence in which these products are being shown then, whatever sequence (ex. 1, 2 or 3) would be ordinal modeling type correct? Or would they both simply be nominal type? Thanks for your help!