normalize_sgmwcs_instance: Helper function to convert an 'igraph' object into a proper...

In mwcsr: Solvers for Maximum Weight Connected Subgraph Problem and Its Variants

Helper function to convert an igraph object into a proper SGMWCS instance

Description

This function generates new igraph object with additional signals field added. The way the instance is constructed is defined by the function parameters. Nodes and edges are grouped separately, grouping columns are defined by nodes.group.by and edges.group.by arguments. group.only.positive param specifies whether to group only positive-weighted (specified by nodes/edges.weight.column) nodes and edges.

Usage

normalize_sgmwcs_instance(
  g,
  nodes.weight.column = "weight",
  edges.weight.column = "weight",
  nodes.group.by = "signal",
  edges.group.by = "signal",
  group.only.positive = TRUE
)

Arguments

g	Graph to convert
nodes.weight.column	Nodes column name (e.g. weight, score, w) for scoring
edges.weight.column	Edges column name for scoring
nodes.group.by	Nodes grouping column (e.g. signal, group, class)
edges.group.by	Edges grouping column
group.only.positive	Whether to group only positive-scored nodes/edges#'

Value

An igraph object with proper attributes set.

Examples

data("gatom_example")
normalize_sgmwcs_instance(gatom_example)

mwcsr documentation built on Sept. 11, 2024, 7:49 p.m.