Convert between undirected and unundirected graphs — as.undirected • igraph

as.undirected() was renamed to as_undirected() to create a more consistent API.

Usage

as.undirected(
  graph,
  mode = c("collapse", "each", "mutual"),
  edge.attr.comb = igraph_opt("edge_attr_combine")
)

Arguments

graph: The graph to convert.
mode: Character constant, defines the conversion algorithm. For as_directed() it can be mutual or arbitrary. For as_undirected() it can be each, collapse or mutual. See details below.

to_undirected()