Replaces tagged NAs with their original missing value codes. Works with
data imported via read_spss() (with tag_na = TRUE) or any reader
that used the tag_na parameter (read_stata(), read_sas(),
read_xpt()). For native Stata/SAS tagged NAs (e.g., .a, .A) that
have no numeric codes to recover, use strip_tags() instead.
Value
A numeric vector where tagged NAs with numeric codes have been
replaced with their original values (e.g., -9, -8, -42). System NAs
(untagged) remain as NA. For native Stata/SAS tagged NAs (no numeric
codes), falls back to strip_tags() behavior with a warning.
See also
read_spss(), read_stata(), read_sas(), na_frequencies(),
strip_tags()
Other data-import:
na_frequencies(),
read_por(),
read_sas(),
read_spss(),
read_stata(),
read_xlsx(),
read_xpt(),
strip_tags()
Examples
# \donttest{
if (requireNamespace("haven", quietly = TRUE)) {
# Tag -9/-8 as missing, then recover the original codes
x <- set_na(c(1, 2, -9, 3, -8), -9, -8)
untag_na(x) # -9 and -8 are back
}
#> [1] 1 2 -9 3 -8
# }