# Converting Transport Data from GTFS Format to GPS-Like Records

## Documentation for package ‘gtfs2gps’ version 2.0-2

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Code demos. Use demo() to run them.

## Help Pages

adjust_arrival_departure | Adjust the arrival and departure times of a GTFS data
adjust_speed | Adjust the speeds of a gps-like table created with 'gtfs2gps'
append_height | Add a column with height to GPS data
cpp_snap_points_nearest1 | Snap points to the closest points from another set
cpp_snap_points_nearest2 | Snap points to the closest points from another set
filter_by_agency_id | Filter GTFS data by agency ids
filter_by_day | Filter GTFS trips operating on given days
filter_by_route_id | Filter GTFS data by route ids
filter_by_route_type | Filter GTFS data by transport mode (route type)
filter_by_shape_id | Filter GTFS data by shape ids
filter_day_period | Filter GTFS data within a period of the day
filter_single_trip | Filter GTFS trips in order to have one trip per shape_id
filter_valid_stop_times | Filter GTFS data using valid stop times
filter_week_days | Filter GTFS trips operating on week days
gps_as_sflinestring | Converts a GPS-like data.table to a LineString Simple Feature (sf) object
gps_as_sfpoints | Convert GPS-like data.table to a Simple Feature points object
gtfs2gps | Convert GTFS to GPS-like data given a spatial resolution
gtfs_shapes_as_sf | Convert GTFS shapes to simple feature object
gtfs_stops_as_sf | Convert GTFS stops to simple feature object
merge_gtfs_feeds | Merge multiple GTFS feeds into a single one
read_gtfs | Read GTFS data into a list of data.tables
remove_by_route_id | Remove GTFS data by route ids
remove_invalid | Remove invalid objects from GTFS data
simplify_shapes | Simplify shapes of a GTFS file
test_gtfs_freq | Test whether a GTFS feed is frequency based
write_gtfs | Write GTFS data into a zip file