Extract station-to-station distance matrix
bike_distmat(bikedb, city, expand = 0.5, long = FALSE, quiet = TRUE)A string containing the path to the SQLite3 database.
If no directory specified, it is presumed to be in tempdir().
City for which tripmat is to be aggregated
Distances are calculated by routing through the OpenStreetMap street network surrounding the bike stations, with the street network expanded by this amount to ensure all stations can be connected.
If FALSE, a square distance matrix of (num-stations, num_stations) is returned; if TRUE, a long-format matrix of (stn-from, stn-to, distance) is returned.
If FALSE, progress is displayed on screen
If long = FALSE, a square matrix of numbers of trips between
each station, otherwise a long-form tibble with three columns of of
(start_station_id, end_station_id, distance)