set_node_attrs_ws {DiagrammeR} | R Documentation |
From a graph object of class
dgr_graph
or a node data frame, set node
attribute properties for nodes present in a node
selection.
Selections of nodes can be performed using
the following select_...
functions:
select_nodes()
,
select_last_node()
,
select_nodes_by_degree()
,
select_nodes_by_id()
, or
select_nodes_in_neighborhood()
.
Selections of nodes can also be performed using
the following traversal functions:
(trav_...
):
trav_out()
, trav_in()
,
trav_both()
, trav_in_node()
,
trav_out_node()
.
set_node_attrs_ws(graph, node_attr, value)
graph |
a graph object of class
|
node_attr |
the name of the attribute to set. |
value |
the value to be set for the chosen attribute for the nodes in the current selection. |
a graph object of class dgr_graph
.
# Create a simple graph graph <- create_graph() %>% add_path(6) # Select specific nodes from the graph and # apply the node attribute `color = blue` to # those selected nodes graph <- graph %>% select_nodes_by_id(1:4) %>% trav_out() %>% set_node_attrs_ws("color", "blue") # Show the internal node data frame to verify # that the node attribute has been set for # specific node get_node_df(graph) #> id type label color #> 1 1 <NA> 1 <NA> #> 2 2 <NA> 2 blue #> 3 3 <NA> 3 blue #> 4 4 <NA> 4 blue #> 5 5 <NA> 5 blue #> 6 6 <NA> 6 <NA>