Querying node types

Description

These functions all lets the user query whether each node is of a certain type. All of the functions returns a logical vector indicating whether the node is of the type in question. Do note that the types are not mutually exclusive and that nodes can thus be of multiple types.

Usage

node_is_cut()

node_is_root()

node_is_leaf()

node_is_sink()

node_is_source()

node_is_isolated()

node_is_universal(mode = "out")

node_is_simplical(mode = "out")

node_is_center(mode = "out")

Arguments

Value

A logical vector of the same length as the number of nodes in the graph.

Functions

• node_is_cut: is the node a cut node (articaultion node)

• node_is_root: is the node a root in a tree

• node_is_leaf: is the node a leaf in a tree

• node_is_sink: does the node only have incomming edges

• node_is_source: does the node only have outgoing edges

• node_is_isolated: is the node unconnected

• node_is_universal: is the node connected to all other nodes in the graph

• node_is_simplical: are all the neighbors of the node connected

• node_is_center: does the node have the minimal eccentricity in the graph

Examples

# Find the root and leafs in a tree
create_tree(40, 2) %>%
  mutate(root = node_is_root(), leaf = node_is_leaf())