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Remove labels that do not appear in the data.
lbl_clean(x)
A haven::labelled vector
A labelled
vector
Other lbl_helpers:
lbl_add()
,
lbl_collapse()
,
lbl_define()
,
lbl_na_if()
,
lbl_relabel()
,
lbl()
,
zap_ipums_attributes()
x <- haven::labelled(
c(1, 2, 3, 1, 2, 3, 1, 2, 3),
c(Q1 = 1, Q2 = 2, Q3 = 3, Q4= 4)
)
lbl_clean(x)
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