get_selection {DiagrammeR} | R Documentation |
Get the current selection of nodes or
edges from a graph object of class dgr_graph
.
get_selection(graph)
graph |
a graph object of class
|
a vector with the current selection of nodes or edges.
library(magrittr) # Create a simple graph graph <- create_graph() %>% add_node_df(create_nodes(1:6)) %>% add_edge("1", "2") %>% add_edge("1", "3") %>% add_edge("3", "4") %>% add_edge("4", "5") %>% add_edge("4", "6") # Select node `4`, then select all nodes a # distance of 1 away from node `4`, and finally # return the selection of nodes as a vector object graph %>% select_nodes(nodes = "4") %>% select_nodes_in_neighborhood( node = "4", distance = 1) %>% get_selection #> [1] "4" "5" "6" "3" # Select edges associated with node `4` and return # the selection of edges graph %>% select_edges_by_node_id(4) %>% get_selection #> [1] "4 -> 5" "4 -> 6" "3 -> 4"