R: Assign variable labels of data frame columns

Question

I am struggling with variable labels of data.frame columns. Say I have the following data frame (part of much larger data frame):

data <- data.frame(age =         


        

Answer 1

If your vector of labels matches the order of your data.frame columns, but isn't a named vector (so can't be used to subset data.frame columns by name like the lapply approach in the other answer), you can use a for-loop:

for(i in seq_along(data)){
  Hmisc::label(data[, i]) <- var.labels[i]
}

label(data)
#>                      age                      sex 
#>           "Age in Years" "Sex of the participant"