DiagrammeR: select_nodes_by_id – R documentation

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select_nodes_by_id

Select nodes in a graph by their ID values

Description

Select nodes in a graph object of class dgr_graph by their node ID values. If nodes have IDs that are monotonically increasing integer values, then numeric ranges can be used for the selection.

Usage

select_nodes_by_id(graph, nodes, set_op = "union")

Arguments

`graph`	A graph object of class `dgr_graph`.
`nodes`	A vector of node IDs for the selection of nodes present in the graph.
`set_op`	The set operation to perform upon consecutive selections of graph nodes. This can either be as a `union` (the default), as an intersection of selections with `intersect`, or, as a `difference` on the previous selection, if it exists.

Value

A graph object of class dgr_graph.

Examples

# Create a node data frame (ndf)
ndf <- create_node_df(n = 10)

# Create a graph
graph <-
  create_graph(
    nodes_df = ndf)

# Select nodes `1` to `5` and show that
# selection of nodes with `get_selection()`
graph %>%
  select_nodes_by_id(nodes = 1:5) %>%
  get_selection()

DiagrammeR

Graph/Network Visualization

v1.0.6.1

MIT + file LICENSE

Authors

Richard Iannone [aut, cre] (<https://orcid.org/0000-0003-3925-190X>)

Initial release