Formal description of an unordered categorical variable
factor_var(name, desc = NULL, levels, ...)
An object of class factor\_var
inheriting from var
with
corresponding methods.
character, the name of the variable
character, a description of what is measured
character, the levels of the factor
ignored
A conceptual description of a (yet) unobserved unordered categorical variable.
factor_var("eye", "eye color", c("blue", "brown", "green", "grey", "mixed"))
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