add_node_df {DiagrammeR} | R Documentation |
With a graph object of class
dgr_graph
add nodes from a node data frame to
that graph.
add_node_df(graph, node_df)
graph |
a graph object of class
|
node_df |
a node data frame that is created
using |
a graph object of class dgr_graph
.
# Create an empty graph graph <- create_graph() # Create a node data frame (ndf) ndf <- create_node_df( n = 4, type = "basic", color = c("red", "green", "grey", "blue"), value = c(3.5, 2.6, 9.4, 2.7)) # Add the node data frame to the graph object to # create a graph with nodes graph <- add_node_df(graph, ndf) get_node_df(graph) #> id type label color value #> 1 1 basic <NA> red 3.5 #> 2 2 basic <NA> green 2.6 #> 3 3 basic <NA> grey 9.4 #> 4 4 basic <NA> blue 2.7 # Create another node data frame ndf_2 <- create_node_df( n = 4, type = "basic", color = c("white", "brown", "aqua", "pink"), value = c(1.6, 6.4, 0.8, 4.2)) # Add the second node data frame to the graph object # to add more nodes with attributes to the graph graph <- add_node_df(graph, ndf_2) # View the graph's internal node data frame using # the `get_node_df()` function get_node_df(graph) #> id type label color value #> 1 1 basic <NA> red 3.5 #> 2 2 basic <NA> green 2.6 #> 3 3 basic <NA> grey 9.4 #> 4 4 basic <NA> blue 2.7 #> 5 5 basic <NA> white 1.6 #> 6 6 basic <NA> brown 6.4 #> 7 7 basic <NA> aqua 0.8 #> 8 8 basic <NA> pink 4.2