Convert object with attributes in "map" to factor

Used to extract texts from a variable containing numeric values.

attr_to_factor(x)

Arguments

x	Object with "map" attributes, where levels and labels exist

Value

Factor

Examples

df <- data.frame(cars = 1:3)
attr(df$cars, "map") <-
  data.frame(levels = 1:3, labels = c("Volvo", "Saab", "Opel"))
attr_to_factor(df$cars)
#> [1] Volvo Saab  Opel 
#> Levels: Volvo Saab Opel