Use the concordance table (crosswalk) to convert from one coding system to another.
crosswalk.RdUse the concordance table (crosswalk) to convert from one coding system to another.
Arguments
- codes
the vector of codes that will be crosswalked
- xwalk
the concordance table.
- invert
by default the crosswalk goes from codes1 to codes2 setting invert to TRUE make the crosswalk go from codes2 to codes1
- unlist
instead of returning a list, return an unamed vector use it when crosswalking a dataframe column with mutate