DiagrammeR (version 0.8.4)

select_last_node: Select last node in a series of node IDs in a graph

Description

Select the last node from a graph object of class dgr_graph. Strictly, this is the node encompassing the last record of the graph's node data frame. In practice, this will typically be the last node added to the graph.

Usage

select_last_node(graph)

Arguments

graph

a graph object of class dgr_graph that is created using create_graph.

Value

a graph object of class dgr_graph.

Examples

library(magrittr)

# Create an empty graph
graph <- create_graph()

# Add three nodes to the graph
graph %<>% add_n_nodes(3)

# Select the last node added
graph %<>% select_last_node

# Get the current selection
graph %>% get_selection
#> $nodes
#> [1] "3"