Distances on Directed Graphs

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Documentation for package ‘dodgr’ version 0.2.21

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

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add_nodes_to_graph	Insert new nodes into a graph, breaking edges at point of nearest intersection.
clear_dodgr_cache	Remove cached versions of 'dodgr' graphs.
compare_heaps	Compare timings of different sort heaps for a given input graph.
dodgr	Distances On Directed GRaphs ("dodgr")
dodgr_cache_off	Turn off all dodgr caching in current session.
dodgr_cache_on	Turn on all dodgr caching in current session.
dodgr_centrality	Calculate betweenness centrality for a 'dodgr' network.
dodgr_components	Identify connected components of graph.
dodgr_contract_graph	Contract graph to junction vertices only.
dodgr_deduplicate_graph	Deduplicate edges in a graph
dodgr_distances	Calculate matrix of pair-wise distances between points.
dodgr_dists	Calculate matrix of pair-wise distances between points.
dodgr_dists_categorical	Cumulative distances along different edge categories
dodgr_dists_nearest	Calculate vector of shortest distances from a series of 'from' points to nearest one of series of 'to' points.
dodgr_flowmap	Create a map of 'dodgr' flows.
dodgr_flows_aggregate	Aggregate flows throughout a network.
dodgr_flows_disperse	Aggregate flows dispersed from each point in a network.
dodgr_flows_si	Aggregate flows throughout a network using a spatial interaction model.
dodgr_full_cycles	Calculate fundamental cycles on a FULL (that is, non-contracted) graph.
dodgr_fundamental_cycles	Calculate fundamental cycles in a graph.
dodgr_insert_vertex	Insert a new node or vertex into a network
dodgr_isochrones	Calculate isochrone contours from specified points.
dodgr_isodists	Calculate isodistance contours from specified points.
dodgr_isoverts	Calculate isodistance or isochrone contours from specified points.
dodgr_load_streetnet	Load a street network previously saved with dodgr_save_streetnet.
dodgr_paths	Calculate lists of pair-wise shortest paths between points.
dodgr_sample	Sample a random but connected sub-component of a graph
dodgr_save_streetnet	Save a weighted streetnet to a local file
dodgr_sflines_to_poly	Convert 'sf' 'LINESTRING' objects to 'POLYGON' objects representing all fundamental cycles within the 'LINESTRING' objects.
dodgr_streetnet	Extract a street network in 'sf'-format for a given location.
dodgr_streetnet_sc	Extract a street network in 'silicate'-format for a given location.
dodgr_times	Calculate matrix of pair-wise travel times between points.
dodgr_to_igraph	Convert a 'dodgr' graph to an 'igraph'.
dodgr_to_sf	Convert a 'dodgr' graph into an equivalent 'sf' object.
dodgr_to_sfc	Convert a 'dodgr' graph into an equivalent 'sf::sfc' object.
dodgr_to_tidygraph	Convert a 'dodgr' graph to an 'tidygraph'.
dodgr_uncontract_graph	Re-expand a contracted graph.
dodgr_vertices	Extract vertices of graph, including spatial coordinates if included.
estimate_centrality_threshold	Estimate a value for the 'dist_threshold' parameter of the dodgr_centrality function.
estimate_centrality_time	Estimate time required for a planned centrality calculation.
hampi	Sample street network from Hampi, India.
igraph_to_dodgr	Convert a 'igraph' network to an equivalent 'dodgr' representation.
match_points_to_graph	Alias for match_pts_to_graph
match_points_to_verts	Alias for match_pts_to_verts
match_pts_to_graph	Match spatial points to the edges of a spatial graph.
match_pts_to_verts	Match spatial points to the vertices of a spatial graph.
merge_directed_graph	Merge directed edges into equivalent undirected edges.
os_roads_bristol	Sample street network from Bristol, U.K.
summary.dodgr_dists_categorical	Transform a result from dodgr_dists_categorical to summary statistics
weighting_profiles	Weighting profiles used to route different modes of transport.
weight_railway	Weight a network for routing along railways.
weight_streetnet	Weight a street network according to a specified weighting profile.
weight_streetnet.default	Weight a street network according to a specified weighting profile.
weight_streetnet.SC	Weight a street network according to a specified weighting profile.
weight_streetnet.sc	Weight a street network according to a specified weighting profile.
weight_streetnet.sf	Weight a street network according to a specified weighting profile.
write_dodgr_wt_profile	Write 'dodgr' weighting profiles to local file.