Variable labels can be stored as a label
attribute for each variable.
This functions sets all non-missing (non-NA) variable labels in a data.frame
var_labels(x) <- value
a data.frame
object
new variable labels, NA
removes the variable label
modifies the variable labels of x
x <- iris
var_labels(x)
#> Sepal.Length Sepal.Width Petal.Length Petal.Width Species
#> NA NA NA NA NA
var_labels(x) <- paste("label for", names(iris))
var_labels(x)
#> Sepal.Length Sepal.Width Petal.Length
#> "label for Sepal.Length" "label for Sepal.Width" "label for Petal.Length"
#> Petal.Width Species
#> "label for Petal.Width" "label for Species"
if(interactive()){
View(x) # in RStudio data viewer labels are displayed
}