Category attributes
# S4 method for Category
name(x)# S4 method for Category
name(x) <- value
# S4 method for `NULL`
name(x) <- value
# S4 method for Category
value(x)
# S4 method for Category
value(x) <- value
# S4 method for Category
id(x)
# S4 method for Category
is.selected(x)
a Category
For the setters, an appropriate value to set
name returns character; value and id return
numeric; value but not id may be NA; is.selected returns
logical indicating whether this Category is a "selected" dichotomy. Setters
return x duly modified.