| set_edge_attrs_ws {DiagrammeR} | R Documentation |
From a graph object of class
dgr_graph or an edge data frame, set edge
attribute properties for one or more edges.
Selections of edges can be performed using
the following select_... functions:
select_edges(),
select_last_edge(), or
select_edges_by_node_id().
Selections of edges can also be performed using
the following traversal functions:
trav_out_edge(), trav_in_edge(),
or trav_both_edge().
set_edge_attrs_ws(graph, edge_attr, value)
graph |
a graph object of class
|
edge_attr |
the name of the attribute to set. |
value |
the value to be set for the chosen attribute for the edges in the current selection. |
a graph object of class dgr_graph.
# Create a simple graph
graph <-
create_graph() %>%
add_path(n = 6)
# Select specific edges from
# the graph and apply the edge
# attribute `color = blue` to
# those selected edges
graph <-
graph %>%
select_nodes_by_id(nodes = 2:4) %>%
trav_out_edge() %>%
set_edge_attrs_ws(
edge_attr = color,
value = "blue")
# Show the internal edge data
# frame to verify that the
# edge attribute has been set
# for specific edges
graph %>%
get_edge_df()