From a graph object of class dgr_graph, set node attribute values for one or more nodes.

set_node_attrs(graph, node_attr, values, nodes = NULL)

Arguments

graph

a graph object of class dgr_graph.

node_attr

the name of the attribute to set.

values

the values to be set for the chosen attribute for the chosen nodes.

nodes

an optional vector of node IDs for filtering the list of nodes present in the graph.

Value

a graph object of class dgr_graph.

Examples

# Create a node data frame (ndf) ndf <- create_node_df( n = 4, type = "basic", label = TRUE, value = c(3.5, 2.6, 9.4, 2.7)) # Create an edge data frame (edf) edf <- create_edge_df( from = c(1, 2, 3), to = c(4, 3, 1), rel = "leading_to") # Create a graph graph <- create_graph( nodes_df = ndf, edges_df = edf) # Set attribute `color = "green"` for # nodes `1` and `3` using the graph object graph <- graph %>% set_node_attrs( node_attr = color, values = "green", nodes = c(1, 3)) # View the graph's node data frame graph %>% get_node_df()
#> id type label value color #> 1 1 basic 1 3.5 green #> 2 2 basic 2 2.6 <NA> #> 3 3 basic 3 9.4 green #> 4 4 basic 4 2.7 <NA>
# Set attribute `color = "blue"` for # all nodes in the graph graph <- graph %>% set_node_attrs( node_attr = color, values = "blue") # Display the graph's ndf graph %>% get_node_df()
#> id type label value color #> 1 1 basic 1 3.5 blue #> 2 2 basic 2 2.6 blue #> 3 3 basic 3 9.4 blue #> 4 4 basic 4 2.7 blue