# Read, Validate, Analyze, and Map GTFS Feeds

## Documentation for package ‘tidytransit’ version 1.8.0

- DESCRIPTION file
- User guides, package vignettes and other documentation
- Package NEWS

## Help Pages

as_tidygtfs | Convert another gtfs like object to a tidygtfs object
cluster_stops | Cluster nearby stops within a group
empty_strings_to_na | Convert empty strings ("") to NA values in all gtfs tables
filter_feed_by_area | Filter a gtfs feed so that it only contains trips that pass a given area
filter_feed_by_date | Filter a gtfs feed so that it only contains trips running on a given date
filter_feed_by_stops | Filter a gtfs feed so that it only contains trips that pass the given stops
filter_feed_by_trips | Filter a gtfs feed so that it only contains a given set of trips
filter_stops | Get a set of stops for a given set of service ids and route ids
filter_stop_times | Filter a 'stop_times' table for a given date and timespan.
get_route_frequency | Get Route Frequency
get_route_geometry | Get all trip shapes for a given route and service
get_stop_frequency | Get Stop Frequency
get_trip_geometry | Get all trip shapes for given trip ids
gtfs_as_sf | Convert stops and shapes to Simple Features
gtfs_duke | Example GTFS data
gtfs_transform | Transform coordinates of a gtfs feed
interpolate_stop_times | Interpolate missing stop_times linearly
na_to_empty_strings | Convert NA values to empty strings ("")
plot.tidygtfs | Plot GTFS stops and trips
print.tidygtfs | Print a GTFS object
raptor | Calculate travel times from one stop to all reachable stops
read_gtfs | Read and validate GTFS files
route_type_names | Dataframe of route type id's and the names of the types (e.g. "Bus")
set_servicepattern | Calculate service pattern ids for a GTFS feed
sf_as_tbl | Convert stops and shapes from sf objects to tibbles
shapes_as_sf | Convert shapes into Simple Features Linestrings
stops_as_sf | Convert stops into Simple Features Points
stop_distances | Calculate distances between a given set of stops
stop_group_distances | Calculates distances among stop within the same group column
summary.tidygtfs | GTFS feed summary
travel_times | Calculate shortest travel times from a stop to all reachable stops
validate_gtfs | Validate GTFS feed
write_gtfs | Write a tidygtfs object to a zip file