get_node_attrs {DiagrammeR} | R Documentation |
From a graph object of class
dgr_graph
, get node attribute values for
one or more nodes.
get_node_attrs(graph, node_attr, nodes = NULL)
graph |
a graph object of class
|
node_attr |
the name of the attribute for which to get values. |
nodes |
an optional vector of node IDs for filtering list of nodes present in the graph or node data frame. |
a named vector of node attribute values for
the attribute given by node_attr
by node ID.
# Create a random graph and # incorporate the node attribute # called `value` graph <- create_random_graph( n = 4, m = 4, set_seed = 23) # Get all of the values from # the `value` node attribute # as a named vector graph %>% get_node_attrs( node_attr = value) #> 1 2 3 4 #> 6.0 2.5 3.5 7.5 # To only return node attribute # values for specified nodes, # use the `nodes` argument graph %>% get_node_attrs( node_attr = value, nodes = c(1, 3)) #> 1 3 #> 6.0 3.5