coords_to_od            Convert coordinates into a data frame of
                        origins and destinations
od_coordinates          Create matrices representing origin-destination
                        coordinates
od_data_centroids       Datasets reporesenting zone centroids
od_data_df              Origin-destination datasets
od_data_network         Route network data for Leeds
od_data_zones           Example OD data
od_filter               Filter OD datasets
od_id                   Combine two ID values to create a single ID
                        number
od_id_order             Generate ordered ids of OD pairs so lowest is
                        always first This function is slow on large
                        datasets, see szudzik_pairing for faster
                        alternative
od_interzone            Return only interzonal (io intrazonal) OD pairs
od_oneway               Aggregate OD pairs they become non-directional
od_to_odmatrix          Convert origin-destination data from long to
                        wide format
od_to_sf                Convert OD data into geographic 'desire line'
                        objects
od_to_sf_network        Convert OD data into lines with start and end
                        points sampled on a network
odc_to_sf               Convert origin-destination coordinates into
                        geographic desire lines
odc_to_sfc              Convert origin-destination coordinates into
                        geographic desire lines
odmatrix_to_od          Convert origin-destination data from wide to
                        long format
points_to_od            Convert a series of points into a dataframe of
                        origins and destinations
sfc_point_to_matrix     Extract coordinates from sfc objects with point
                        geometry
