| 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 using the
# `add_gnm_graph()` function
graph <-
create_graph() %>%
add_gnm_graph(
n = 4,
m = 4,
set_seed = 23) %>%
set_node_attrs(
node_attr = value,
values = c(2.5, 8.2, 4.2, 2.4))
# Get all of the values from
# the `value` node attribute
# as a named vector
graph %>%
get_node_attrs(
node_attr = value)
# To only return node attribute
# values for specified nodes,
# use the `nodes` argument
graph %>%
get_node_attrs(
node_attr = value,
nodes = c(1, 3))