apply_labs_haven function

Apply haven value labels to a vector

apply_labs_haven(x, labels, ptype, ...)

Arguments

• x: a vector to label
• labels: a named vector of labels in the format c(value = label)
• ptype: vector to serve as prototype for label values
• ...: unused, needed to ignore extra arguments that may be passed

Returns

haven_labelled vector

Details

Assumes a check_installed() has been run for labelled. Since haven preserves the underlying data values we need to make sure the data type of the value options in the metadata matches the data type of the values in the actual data. This function accepts a prototype, usually a column from db_data, and uses force_cast() to do a best-effort casting of the value options in the metadata to the same data type as ptype. The fallback is to convert x and the value labels to character.