migraph (version 0.12.1)

mark_nodes: Marking nodes based on their properties

Description

These functions return logical vectors the length of the nodes in a network identifying which hold certain properties.

node_is_cutpoint() and node_is_isolate() are useful for identifying nodes that are in particular positions in the network. More can be added here.

node_is_max() and node_is_min() are more generally useful for converting the results from some node measure into a mark-class object. They can be particularly useful for highlighting which node or nodes are key because they minimise or, more often, maximise some measure.

Usage

node_is_cutpoint(object)
node_is_isolate(object)
node_is_core(object)
node_is_max(node_measure)
node_is_min(node_measure)

Arguments

object

An object of a migraph-consistent class:

• matrix (adjacency or incidence) from {base} R

• edgelist, a data frame from {base} R or tibble from {tibble}

• igraph, from the {igraph} package

• network, from the {network} package

• tbl_graph, from the {tidygraph} package

node_measure

An object created by a node_ measure.

Functions

• node_is_cutpoint(): Returns logical of which nodes cut or act as articulation points in a network, increasing the number of connected components in a graph when removed.

• node_is_isolate(): Returns logical of which nodes are isolates, with neither incoming nor outgoing ties.

• node_is_core(): Returns logical of which nodes are members of the core of the network.

• node_is_max(): Returns logical of which nodes hold the maximum of some measure

• node_is_min(): Returns logical of which nodes hold the minimum of some measure

See Also

Other marks: is(), mark_ties

Examples

node_is_cutpoint(ison_brandes)
node_is_isolate(ison_brandes)
node_is_core(ison_brandes)
node_is_max(node_degree(ison_brandes))
node_is_min(node_degree(ison_brandes))