translate_vector: This function relabels a vector
In labelmachine: Make Labeling of R Data Sets Easy

This function relabels a vector

1 2	translate_vector(val, translation, keep_order, to_factor, is_translated, err_handler)

`val`	The vector that should be relabeled. Allowed are all vector types (also factor).
`translation`	Named character vector holding the label assignments.
`keep_order`	A logical flag. If the vector in `val` is a factor variable and `keep_order` is set to `TRUE`, then the order of the original factor variable is preserved.
`to_factor`	A logical flag. If set to `TRUE`, the the resulting labeled variable will be a factor and a plain character vector otherwise.
`is_translated`	A logical flag. If `is_translated = TRUE`, then `val` must be a character vector holding the right labels (character strings) and will be turned into a factor with ordering given in the translation (except for the case when `keep_order = TRUE`).
`err_handler`	An error handling function