node_info {DiagrammeR} | R Documentation |
Obtain a data frame with detailed information on nodes and their interrelationships within a graph.
node_info(graph)
graph |
a graph object of class |
a data frame containing information specific to each node within the graph.
## Not run: # Create a simple graph and get node information from it nodes <- create_nodes(nodes = LETTERS, label = TRUE, type = c(rep("a_to_g", 7), rep("h_to_p", 9), rep("q_to_x", 8), rep("y_and_z",2))) edges <- create_edges(from = sample(LETTERS, replace = TRUE), to = sample(LETTERS, replace = TRUE), label = "edge", rel = "letter_to_letter") graph <- create_graph(nodes_df = nodes, edges_df = edges, graph_attrs = "layout = neato", node_attrs = c("fontname = Helvetica", "shape = circle")) node_info(graph) #> node label type degree indegree outdegree loops #> 1 A A a_to_g 2 0 2 0 #> 2 W W q_to_x 1 0 1 0 #> 3 T T q_to_x 2 0 2 0 #> 4 L L h_to_p 1 0 1 0 #> 5 F F a_to_g 0 0 0 0 #>.. ... ... ... ... ... ... ... # Import a large graph power_grid <- import_graph(system.file("examples/power_grid.graphml", package = "DiagrammeR")) # Use dplyr::filter to determine which nodes are highly # connected in this graph library(dplyr) high_connect_nodes <- filter(node_info(power_grid), degree > 10)$node ## End(Not run)