Convert values to NA based on their label and value in a labelled vector. Ignores any value that does not have a label.

lbl_na_if(x, .predicate)

Arguments

x

A labelled vector

.predicate

A function that takes .val and .lbl (the values and labels) and returns TRUE or FALSE. It is passed to a function similar to as_function, so also accepts quosure-style lambda functions (that use values .val and .lbl). See examples for more information.

Value

A haven::labeled vector

See also

Examples

x <- haven::labelled( c(10, 10, 11, 20, 30, 99, 30, 10), c(Yes = 10, `Yes - Logically Assigned` = 11, No = 20, Maybe = 30, NIU = 99) ) lbl_na_if(x, ~.val >= 90)
#> <Labelled double> #> [1] 10 10 11 20 30 NA 30 10 #> #> Labels: #> value label #> 10 Yes #> 11 Yes - Logically Assigned #> 20 No #> 30 Maybe
lbl_na_if(x, ~.lbl %in% c("Maybe"))
#> <Labelled double> #> [1] 10 10 11 20 NA 99 NA 10 #> #> Labels: #> value label #> 10 Yes #> 11 Yes - Logically Assigned #> 20 No #> 99 NIU
lbl_na_if(x, ~.val >= 90 | .lbl %in% c("Maybe"))
#> <Labelled double> #> [1] 10 10 11 20 NA NA NA 10 #> #> Labels: #> value label #> 10 Yes #> 11 Yes - Logically Assigned #> 20 No
# You can also use the more explicit function notation lbl_na_if(x, function(.val, .lbl) .val >= 90)
#> <Labelled double> #> [1] 10 10 11 20 30 NA 30 10 #> #> Labels: #> value label #> 10 Yes #> 11 Yes - Logically Assigned #> 20 No #> 30 Maybe
# Or even the name of a function na_function <- function(.val, .lbl) .val >= 90 lbl_na_if(x, "na_function")
#> <Labelled double> #> [1] 10 10 11 20 30 NA 30 10 #> #> Labels: #> value label #> 10 Yes #> 11 Yes - Logically Assigned #> 20 No #> 30 Maybe