as.Dates                Converting potential date to Date vector
as.incadata             Identify data formats used by INCA and Rockan
documents               Download and possibly open INCA documentation
ex_data                 Synthetic example data from INCA
find_documents          List all documents for a register
find_register           Find register by name
id                      Add id variables to data frame
is.incalogical          Coerce to logical if value is logical according
                        to INCA
lt                      Lead time from one date to another
next_method             Function to create methods for generics
use_incadata            Use incadata from file or dataframe df
