accidents_sample        Sample of stats19 data (2017 accidents)
casualties_sample       Sample of stats19 data (2017 casualties)
check_input_file        Local helper to be reused.
check_year              This is a private function which does two
                        things: 1. is used to check if there is an
                        overlapping of files with multiple years. The
                        matching between the years and the files works
                        as follows: 1979 ... 2004 -> 1979 - 2004 2005
                        ... 2008 -> 2005 - 2014 2009 -> 2009 2010 ->
                        2010 2011 -> 2011 ...  2018 -> 2018 2. it also
                        does the sanity checking of the year(s) given
dl_stats19              Download STATS19 data for a year or range of
                        two years.
file_names              stats19 file names for easy access
find_file_name          Find file names within stats19::file_names.
format_accidents        Format STATS19 'accidents' data
format_casualties       Format STATS19 casualties
format_column_names     Format column names of raw STATS19 data
format_ppp              Convert STATS19 data into ppp (spatstat)
                        format.
format_sf               Format convert STATS19 data into spatial (sf)
                        object
format_vehicles         Format STATS19 vehicles data
get_MOT                 Download vehicle data from the DVSA MOT API
                        using VRM.
get_ULEZ                Download DVLA-based vehicle data from the TfL
                        API using VRM.
get_data_directory      Get data download dir
get_stats19             Download, read and format STATS19 data in one
                        function.
get_stats19_adjustments
                        Download and read-in severity adjustment
                        factors
get_url                 Convert file names to urls
locate_files            Locate a file on disk
locate_one_file         Pin down a file on disk from four parameters.
phrase                  Generate a phrase for data download purposes
police_boundaries       Police force boundaries in England (2016)
read_accidents          Read in STATS19 road safety data from .csv
                        files downloaded.
read_casualties         Read in STATS19 road safety data from .csv
                        files downloaded.
read_vehicles           Read in stats19 road safety data from .csv
                        files downloaded.
schema_original         Schema for stats19 data (UKDS)
select_file             Interactively select from options
set_data_directory      Set data download dir
stats19_schema          Stats19 schema and variables
vehicles_sample         Sample of stats19 data (2017 vehicles)
