Description Usage Arguments See Also Examples
It is similar to the labelled
class but it also models SPSS's
userdefined missings, which can be up to three distinct values,
or for numeric vectors a range.
1 
x 
A vector to label. Must be either numeric (integer or double) or character. 
labels 
A named vector. The vector should be the same type as

na_values 
A vector of values that should also be considered as missing. 
na_range 
A numeric vector of length two giving the (inclusive) extents
of the range. Use 
labelled_spss
(haven)
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