as_unsigned_2mode function

convert signed two-mode network to unsigned

as_unsigned_2mode(g, primary = TRUE)

Arguments

• g: igraph object. Two-mode network, must have a "sign" edge attribute.
• primary: logical. Which mode to transform

Returns

igraph object

Examples

library(igraph)

# create a simple signed two mode network
el <- matrix(c(1, "a", 1, "b", 1, "c", 2, "a", 2, "b"), ncol = 2, byrow = TRUE)
g <- graph_from_edgelist(el, directed = FALSE)
E(g)$sign <- c(1, 1, -1, 1, -1)
V(g)$type <- c(FALSE, TRUE, TRUE, TRUE, FALSE)

# convert to unsigned two-mode network and project
l <- as_unsigned_2mode(g, primary = TRUE)
p <- bipartite_projection(l, which = "true")

# turn the unsigned projection back to a signed network
as_signed_proj(p)

See Also

as_signed_proj

Author(s)

David Schoch