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Set label attributes of all variables in a data.frame

Source: R/labels.R
var_labels-set.Rd

Variable labels can be stored as the label attribute for each variable. This functions sets all non-missing (non-NA) variable labels in a data.frame.

Usage

var_labels(x) <- value

Arguments

x

(data.frame)
a data frame object.

value

(character)
a vector of new variable labels. If any values are NA, the label for that variable is removed.

Value

x with modified variable labels.

Examples

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
}